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  • PHP qrcode 生成二维码

    <?php
    /*
    下载地址 : https://sourceforge.net/projects/phpqrcode/
    这里下载的文件名为 phpqrcode-2010100721_1.1.4
    下载下来的类文件是一个压缩包,里边包含很多文件和演示程序,这里只需要里边的 phpqrcode.php 这一个文件就可以生成二维码了。它是一个多个类的集合文件,需要用到里边的QRcode类的png()方法
    */
    require_once 'phpqrcode.php';
    
    /*
    第1个参数$text         : String 二维码包含的内容,可以是链接、文字、json字符串等等;
    第2个参数$outfile      : String 默认为false,不生成文件,只将二维码图片返回输出;否则需要给出存放生成二维码图片的文件名及路径;
    第3个参数$level        : 常量 默认为 QR_ECLEVEL_L,这个参数可传递的值分别是L(QR_ECLEVEL_L,7%)、M(QR_ECLEVEL_M,15%)、Q(QR_ECLEVEL_Q,25%)、H(QR_ECLEVEL_H,30%),这个参数控制二维码容错率,不同的参数表示二维码可被覆盖的区域百分比,也就是被覆盖的区域还能识别;
    第4个参数$size         : Integer 控制生成图片的大小,默认为4;
    第5个参数$margin       : Integer 控制生成二维码的空白区域大小;
    第6个参数$saveandprint : Boolean 保存二维码图片并显示出来,$outfile必须传递图片路径,这项需要修改原方法 png() 里的 return $enc->encodePNG($text, $outfile, $saveandprint=false); 将 $saveandprint=false 改为 $saveandprint ,否则将一直传递 false
    */
    QRcode::png("ceshiceshizhi",'testqr.jpg',QR_ECLEVEL_L,13,1,true);
    
    /*
    TP5 中使用方法
    
    根目录 extend 下新建文件夹 Phpqrcode
    将 phpqrcode.php 文件重命名为 QRcode.php 然后复制到
    ./extend/Phpqrcode/
    然后在 QRcode.php 文件第一行 添加
    namespace Phpqrcode;
    
    TP5中,extend 文件夹下的各文件夹名代表命名空间名,命名空间文件夹下的PHP文件名和该文件内的类名相同,在项目中即可通过 命名空间类名::方法名() 或者 new 命名空间类名() 调用方法或创建对象;
    
    现在可通过
    PhpqrcodeQRcode::png("11111tp5qrtes",'./public/uploads/zo_qr/testqr.png',QR_ECLEVEL_L,13,1);
    生成二维码图片,但是tp5里直接输出显示会出乱码
    */
    ?>

    附 phpqrcode.php 页内容

    <?php
    
    /*
     * PHP QR Code encoder
     *
     * This file contains MERGED version of PHP QR Code library.
     * It was auto-generated from full version for your convenience.
     *
     * This merged version was configured to not requre any external files,
     * with disabled cache, error loging and weker but faster mask matching.
     * If you need tune it up please use non-merged version.
     *
     * For full version, documentation, examples of use please visit:
     *
     *    http://phpqrcode.sourceforge.net/
     *    https://sourceforge.net/projects/phpqrcode/
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
     
    
    /*
     * Version: 1.1.4
     * Build: 2010100721
     */
    
    
    
    //---- qrconst.php -----------------------------
    
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Common constants
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        // Encoding modes
         
        define('QR_MODE_NUL', -1);
        define('QR_MODE_NUM', 0);
        define('QR_MODE_AN', 1);
        define('QR_MODE_8', 2);
        define('QR_MODE_KANJI', 3);
        define('QR_MODE_STRUCTURE', 4);
    
        // Levels of error correction.
    
        define('QR_ECLEVEL_L', 0);
        define('QR_ECLEVEL_M', 1);
        define('QR_ECLEVEL_Q', 2);
        define('QR_ECLEVEL_H', 3);
        
        // Supported output formats
        
        define('QR_FORMAT_TEXT', 0);
        define('QR_FORMAT_PNG',  1);
        
        class qrstr {
            public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
                $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
            }
        }    
    
    
    
    //---- merged_config.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Config file, tuned-up for merged verion
     */
         
        define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
        define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
        define('QR_LOG_DIR', false);         // default error logs dir   
        
        define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
        define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
        define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
                                                      
        define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
                                                      
    
    
    
    //---- qrtools.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Toolset, handy and debug utilites.
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
    
        class QRtools {
        
            //----------------------------------------------------------------------
            public static function binarize($frame)
            {
                $len = count($frame);
                foreach ($frame as &$frameLine) {
                    
                    for($i=0; $i<$len; $i++) {
                        $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
                    }
                }
                
                return $frame;
            }
            
            //----------------------------------------------------------------------
            public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
            {
                $barcode_array = array();
                
                if (!is_array($mode))
                    $mode = explode(',', $mode);
                    
                $eccLevel = 'L';
                    
                if (count($mode) > 1) {
                    $eccLevel = $mode[1];
                }
                    
                $qrTab = QRcode::text($code, false, $eccLevel);
                $size = count($qrTab);
                    
                $barcode_array['num_rows'] = $size;
                $barcode_array['num_cols'] = $size;
                $barcode_array['bcode'] = array();
                    
                foreach ($qrTab as $line) {
                    $arrAdd = array();
                    foreach(str_split($line) as $char)
                        $arrAdd[] = ($char=='1')?1:0;
                    $barcode_array['bcode'][] = $arrAdd;
                }
                        
                return $barcode_array;
            }
            
            //----------------------------------------------------------------------
            public static function clearCache()
            {
                self::$frames = array();
            }
            
            //----------------------------------------------------------------------
            public static function buildCache()
            {
                QRtools::markTime('before_build_cache');
                
                $mask = new QRmask();
                for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
                    $frame = QRspec::newFrame($a);
                    if (QR_IMAGE) {
                        $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
                        QRimage::png(self::binarize($frame), $fileName, 1, 0);
                    }
                    
                    $width = count($frame);
                    $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
                    for ($maskNo=0; $maskNo<8; $maskNo++)
                        $mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
                }
                
                QRtools::markTime('after_build_cache');
            }
    
            //----------------------------------------------------------------------
            public static function log($outfile, $err)
            {
                if (QR_LOG_DIR !== false) {
                    if ($err != '') {
                        if ($outfile !== false) {
                            file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
                        } else {
                            file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
                        }
                    }    
                }
            }
            
            //----------------------------------------------------------------------
            public static function dumpMask($frame) 
            {
                $width = count($frame);
                for($y=0;$y<$width;$y++) {
                    for($x=0;$x<$width;$x++) {
                        echo ord($frame[$y][$x]).',';
                    }
                }
            }
            
            //----------------------------------------------------------------------
            public static function markTime($markerId)
            {
                list($usec, $sec) = explode(" ", microtime());
                $time = ((float)$usec + (float)$sec);
                
                if (!isset($GLOBALS['qr_time_bench']))
                    $GLOBALS['qr_time_bench'] = array();
                
                $GLOBALS['qr_time_bench'][$markerId] = $time;
            }
            
            //----------------------------------------------------------------------
            public static function timeBenchmark()
            {
                self::markTime('finish');
            
                $lastTime = 0;
                $startTime = 0;
                $p = 0;
    
                echo '<table cellpadding="3" cellspacing="1">
                        <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
                        <tbody>';
    
                foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
                    if ($p > 0) {
                        echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
                    } else {
                        $startTime = $thisTime;
                    }
                    
                    $p++;
                    $lastTime = $thisTime;
                }
                
                echo '</tbody><tfoot>
                    <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
                </tfoot>
                </table>';
            }
            
        }
        
        //##########################################################################
        
        QRtools::markTime('start');
        
    
    
    
    //---- qrspec.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * QR Code specifications
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * The following data / specifications are taken from
     * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
     *  or
     * "Automatic identification and data capture techniques -- 
     *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        define('QRSPEC_VERSION_MAX', 40);
        define('QRSPEC_WIDTH_MAX',   177);
    
        define('QRCAP_WIDTH',        0);
        define('QRCAP_WORDS',        1);
        define('QRCAP_REMINDER',     2);
        define('QRCAP_EC',           3);
    
        class QRspec {
        
            public static $capacity = array(
                array(  0,    0, 0, array(   0,    0,    0,    0)),
                array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
                array( 25,   44, 7, array(  10,   16,   22,   28)),
                array( 29,   70, 7, array(  15,   26,   36,   44)),
                array( 33,  100, 7, array(  20,   36,   52,   64)),
                array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
                array( 41,  172, 7, array(  36,   64,   96,  112)),
                array( 45,  196, 0, array(  40,   72,  108,  130)),
                array( 49,  242, 0, array(  48,   88,  132,  156)),
                array( 53,  292, 0, array(  60,  110,  160,  192)),
                array( 57,  346, 0, array(  72,  130,  192,  224)), //10
                array( 61,  404, 0, array(  80,  150,  224,  264)),
                array( 65,  466, 0, array(  96,  176,  260,  308)),
                array( 69,  532, 0, array( 104,  198,  288,  352)),
                array( 73,  581, 3, array( 120,  216,  320,  384)),
                array( 77,  655, 3, array( 132,  240,  360,  432)), //15
                array( 81,  733, 3, array( 144,  280,  408,  480)),
                array( 85,  815, 3, array( 168,  308,  448,  532)),
                array( 89,  901, 3, array( 180,  338,  504,  588)),
                array( 93,  991, 3, array( 196,  364,  546,  650)),
                array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
                array(101, 1156, 4, array( 224,  442,  644,  750)),
                array(105, 1258, 4, array( 252,  476,  690,  816)),
                array(109, 1364, 4, array( 270,  504,  750,  900)),
                array(113, 1474, 4, array( 300,  560,  810,  960)),
                array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
                array(121, 1706, 4, array( 336,  644,  952, 1110)),
                array(125, 1828, 4, array( 360,  700, 1020, 1200)),
                array(129, 1921, 3, array( 390,  728, 1050, 1260)),
                array(133, 2051, 3, array( 420,  784, 1140, 1350)),
                array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
                array(141, 2323, 3, array( 480,  868, 1290, 1530)),
                array(145, 2465, 3, array( 510,  924, 1350, 1620)),
                array(149, 2611, 3, array( 540,  980, 1440, 1710)),
                array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
                array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
                array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
                array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
                array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
                array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
                array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
            );
            
            //----------------------------------------------------------------------
            public static function getDataLength($version, $level)
            {
                return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
            }
            
            //----------------------------------------------------------------------
            public static function getECCLength($version, $level)
            {
                return self::$capacity[$version][QRCAP_EC][$level];
            }
            
            //----------------------------------------------------------------------
            public static function getWidth($version)
            {
                return self::$capacity[$version][QRCAP_WIDTH];
            }
            
            //----------------------------------------------------------------------
            public static function getRemainder($version)
            {
                return self::$capacity[$version][QRCAP_REMINDER];
            }
            
            //----------------------------------------------------------------------
            public static function getMinimumVersion($size, $level)
            {
    
                for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
                    $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
                    if($words >= $size) 
                        return $i;
                }
    
                return -1;
            }
        
            //######################################################################
            
            public static $lengthTableBits = array(
                array(10, 12, 14),
                array( 9, 11, 13),
                array( 8, 16, 16),
                array( 8, 10, 12)
            );
            
            //----------------------------------------------------------------------
            public static function lengthIndicator($mode, $version)
            {
                if ($mode == QR_MODE_STRUCTURE)
                    return 0;
                    
                if ($version <= 9) {
                    $l = 0;
                } else if ($version <= 26) {
                    $l = 1;
                } else {
                    $l = 2;
                }
    
                return self::$lengthTableBits[$mode][$l];
            }
            
            //----------------------------------------------------------------------
            public static function maximumWords($mode, $version)
            {
                if($mode == QR_MODE_STRUCTURE) 
                    return 3;
                    
                if($version <= 9) {
                    $l = 0;
                } else if($version <= 26) {
                    $l = 1;
                } else {
                    $l = 2;
                }
    
                $bits = self::$lengthTableBits[$mode][$l];
                $words = (1 << $bits) - 1;
                
                if($mode == QR_MODE_KANJI) {
                    $words *= 2; // the number of bytes is required
                }
    
                return $words;
            }
    
            // Error correction code -----------------------------------------------
            // Table of the error correction code (Reed-Solomon block)
            // See Table 12-16 (pp.30-36), JIS X0510:2004.
    
            public static $eccTable = array(
                array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
                array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
                array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
                array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
                array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
                array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
                array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
                array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
                array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
                array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
                array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
                array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
                array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
                array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
                array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
                array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
                array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
                array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
                array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
                array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
                array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
                array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
                array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
                array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
                array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
                array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
                array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
                array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
                array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
                array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
                array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
                array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
                array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
                array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
                array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
                array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
                array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
                array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
                array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
                array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
                array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
            );                                                                       
    
            //----------------------------------------------------------------------
            // CACHEABLE!!!
            
            public static function getEccSpec($version, $level, array &$spec)
            {
                if (count($spec) < 5) {
                    $spec = array(0,0,0,0,0);
                }
    
                $b1   = self::$eccTable[$version][$level][0];
                $b2   = self::$eccTable[$version][$level][1];
                $data = self::getDataLength($version, $level);
                $ecc  = self::getECCLength($version, $level);
    
                if($b2 == 0) {
                    $spec[0] = $b1;
                    $spec[1] = (int)($data / $b1);
                    $spec[2] = (int)($ecc / $b1);
                    $spec[3] = 0; 
                    $spec[4] = 0;
                } else {
                    $spec[0] = $b1;
                    $spec[1] = (int)($data / ($b1 + $b2));
                    $spec[2] = (int)($ecc  / ($b1 + $b2));
                    $spec[3] = $b2;
                    $spec[4] = $spec[1] + 1;
                }
            }
    
            // Alignment pattern ---------------------------------------------------
    
            // Positions of alignment patterns.
            // This array includes only the second and the third position of the 
            // alignment patterns. Rest of them can be calculated from the distance 
            // between them.
             
            // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
             
            public static $alignmentPattern = array(      
                array( 0,  0),
                array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
                array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
                array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
                array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
                array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
                array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
                array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
                array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
            );                                                                                  
    
            
            /** --------------------------------------------------------------------
             * Put an alignment marker.
             * @param frame
             * @param width
             * @param ox,oy center coordinate of the pattern
             */
            public static function putAlignmentMarker(array &$frame, $ox, $oy)
            {
                $finder = array(
                    "xa1xa1xa1xa1xa1",
                    "xa1xa0xa0xa0xa1",
                    "xa1xa0xa1xa0xa1",
                    "xa1xa0xa0xa0xa1",
                    "xa1xa1xa1xa1xa1"
                );                        
                
                $yStart = $oy-2;         
                $xStart = $ox-2;
                
                for($y=0; $y<5; $y++) {
                    QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
                }
            }
    
            //----------------------------------------------------------------------
            public static function putAlignmentPattern($version, &$frame, $width)
            {
                if($version < 2)
                    return;
    
                $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
                if($d < 0) {
                    $w = 2;
                } else {
                    $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
                }
    
                if($w * $w - 3 == 1) {
                    $x = self::$alignmentPattern[$version][0];
                    $y = self::$alignmentPattern[$version][0];
                    self::putAlignmentMarker($frame, $x, $y);
                    return;
                }
    
                $cx = self::$alignmentPattern[$version][0];
                for($x=1; $x<$w - 1; $x++) {
                    self::putAlignmentMarker($frame, 6, $cx);
                    self::putAlignmentMarker($frame, $cx,  6);
                    $cx += $d;
                }
    
                $cy = self::$alignmentPattern[$version][0];
                for($y=0; $y<$w-1; $y++) {
                    $cx = self::$alignmentPattern[$version][0];
                    for($x=0; $x<$w-1; $x++) {
                        self::putAlignmentMarker($frame, $cx, $cy);
                        $cx += $d;
                    }
                    $cy += $d;
                }
            }
    
            // Version information pattern -----------------------------------------
    
            // Version information pattern (BCH coded).
            // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
            
            // size: [QRSPEC_VERSION_MAX - 6]
            
            public static $versionPattern = array(
                0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
                0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
                0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
                0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
                0x27541, 0x28c69
            );
    
            //----------------------------------------------------------------------
            public static function getVersionPattern($version)
            {
                if($version < 7 || $version > QRSPEC_VERSION_MAX)
                    return 0;
    
                return self::$versionPattern[$version -7];
            }
    
            // Format information --------------------------------------------------
            // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
            
            public static $formatInfo = array(
                array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
                array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
                array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
                array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
            );
    
            public static function getFormatInfo($mask, $level)
            {
                if($mask < 0 || $mask > 7)
                    return 0;
                    
                if($level < 0 || $level > 3)
                    return 0;                
    
                return self::$formatInfo[$level][$mask];
            }
    
            // Frame ---------------------------------------------------------------
            // Cache of initial frames.
             
            public static $frames = array();
    
            /** --------------------------------------------------------------------
             * Put a finder pattern.
             * @param frame
             * @param width
             * @param ox,oy upper-left coordinate of the pattern
             */
            public static function putFinderPattern(&$frame, $ox, $oy)
            {
                $finder = array(
                    "xc1xc1xc1xc1xc1xc1xc1",
                    "xc1xc0xc0xc0xc0xc0xc1",
                    "xc1xc0xc1xc1xc1xc0xc1",
                    "xc1xc0xc1xc1xc1xc0xc1",
                    "xc1xc0xc1xc1xc1xc0xc1",
                    "xc1xc0xc0xc0xc0xc0xc1",
                    "xc1xc1xc1xc1xc1xc1xc1"
                );                            
                
                for($y=0; $y<7; $y++) {
                    QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
                }
            }
    
            //----------------------------------------------------------------------
            public static function createFrame($version)
            {
                $width = self::$capacity[$version][QRCAP_WIDTH];
                $frameLine = str_repeat ("", $width);
                $frame = array_fill(0, $width, $frameLine);
    
                // Finder pattern
                self::putFinderPattern($frame, 0, 0);
                self::putFinderPattern($frame, $width - 7, 0);
                self::putFinderPattern($frame, 0, $width - 7);
                
                // Separator
                $yOffset = $width - 7;
                
                for($y=0; $y<7; $y++) {
                    $frame[$y][7] = "xc0";
                    $frame[$y][$width - 8] = "xc0";
                    $frame[$yOffset][7] = "xc0";
                    $yOffset++;
                }
                
                $setPattern = str_repeat("xc0", 8);
                
                QRstr::set($frame, 0, 7, $setPattern);
                QRstr::set($frame, $width-8, 7, $setPattern);
                QRstr::set($frame, 0, $width - 8, $setPattern);
            
                // Format info
                $setPattern = str_repeat("x84", 9);
                QRstr::set($frame, 0, 8, $setPattern);
                QRstr::set($frame, $width - 8, 8, $setPattern, 8);
                
                $yOffset = $width - 8;
    
                for($y=0; $y<8; $y++,$yOffset++) {
                    $frame[$y][8] = "x84";
                    $frame[$yOffset][8] = "x84";
                }
    
                // Timing pattern  
                
                for($i=1; $i<$width-15; $i++) {
                    $frame[6][7+$i] = chr(0x90 | ($i & 1));
                    $frame[7+$i][6] = chr(0x90 | ($i & 1));
                }
                
                // Alignment pattern  
                self::putAlignmentPattern($version, $frame, $width);
                
                // Version information 
                if($version >= 7) {
                    $vinf = self::getVersionPattern($version);
    
                    $v = $vinf;
                    
                    for($x=0; $x<6; $x++) {
                        for($y=0; $y<3; $y++) {
                            $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
                            $v = $v >> 1;
                        }
                    }
    
                    $v = $vinf;
                    for($y=0; $y<6; $y++) {
                        for($x=0; $x<3; $x++) {
                            $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
                            $v = $v >> 1;
                        }
                    }
                }
        
                // and a little bit...  
                $frame[$width - 8][8] = "x81";
                
                return $frame;
            }
    
            //----------------------------------------------------------------------
            public static function debug($frame, $binary_mode = false)
            {
                if ($binary_mode) {
                
                        foreach ($frame as &$frameLine) {
                            $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
                            $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
                        }
                        
                        ?>
                    <style>
                        .m { background-color: white; }
                    </style>
                    <?php
                        echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
                        echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
                        echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
                
                } else {
                
                    foreach ($frame as &$frameLine) {
                        $frameLine = join('<span class="m">&nbsp;</span>',  explode("xc0", $frameLine));
                        $frameLine = join('<span class="m">&#9618;</span>', explode("xc1", $frameLine));
                        $frameLine = join('<span class="p">&nbsp;</span>',  explode("xa0", $frameLine));
                        $frameLine = join('<span class="p">&#9618;</span>', explode("xa1", $frameLine));
                        $frameLine = join('<span class="s">&#9671;</span>', explode("x84", $frameLine)); //format 0
                        $frameLine = join('<span class="s">&#9670;</span>', explode("x85", $frameLine)); //format 1
                        $frameLine = join('<span class="x">&#9762;</span>', explode("x81", $frameLine)); //special bit
                        $frameLine = join('<span class="c">&nbsp;</span>',  explode("x90", $frameLine)); //clock 0
                        $frameLine = join('<span class="c">&#9719;</span>', explode("x91", $frameLine)); //clock 1
                        $frameLine = join('<span class="f">&nbsp;</span>',  explode("x88", $frameLine)); //version
                        $frameLine = join('<span class="f">&#9618;</span>', explode("x89", $frameLine)); //version
                        $frameLine = join('&#9830;', explode("x01", $frameLine));
                        $frameLine = join('&#8901;', explode("", $frameLine));
                    }
                    
                    ?>
                    <style>
                        .p { background-color: yellow; }
                        .m { background-color: #00FF00; }
                        .s { background-color: #FF0000; }
                        .c { background-color: aqua; }
                        .x { background-color: pink; }
                        .f { background-color: gold; }
                    </style>
                    <?php
                    echo "<pre><tt>";
                    echo join("<br/ >", $frame);
                    echo "</tt></pre>";
                
                }
            }
    
            //----------------------------------------------------------------------
            public static function serial($frame)
            {
                return gzcompress(join("
    ", $frame), 9);
            }
            
            //----------------------------------------------------------------------
            public static function unserial($code)
            {
                return explode("
    ", gzuncompress($code));
            }
            
            //----------------------------------------------------------------------
            public static function newFrame($version)
            {
                if($version < 1 || $version > QRSPEC_VERSION_MAX) 
                    return null;
    
                if(!isset(self::$frames[$version])) {
                    
                    $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
                    
                    if (QR_CACHEABLE) {
                        if (file_exists($fileName)) {
                            self::$frames[$version] = self::unserial(file_get_contents($fileName));
                        } else {
                            self::$frames[$version] = self::createFrame($version);
                            file_put_contents($fileName, self::serial(self::$frames[$version]));
                        }
                    } else {
                        self::$frames[$version] = self::createFrame($version);
                    }
                }
                
                if(is_null(self::$frames[$version]))
                    return null;
    
                return self::$frames[$version];
            }
    
            //----------------------------------------------------------------------
            public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
            public static function rsBlockNum1($spec)    { return $spec[0]; }
            public static function rsDataCodes1($spec)   { return $spec[1]; }
            public static function rsEccCodes1($spec)    { return $spec[2]; }
            public static function rsBlockNum2($spec)    { return $spec[3]; }
            public static function rsDataCodes2($spec)   { return $spec[4]; }
            public static function rsEccCodes2($spec)    { return $spec[2]; }
            public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
            public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
            
        }
    
    
    
    //---- qrimage.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Image output of code using GD2
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        define('QR_IMAGE', true);
    
        class QRimage {
        
            //----------------------------------------------------------------------
            public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
            {
                $image = self::image($frame, $pixelPerPoint, $outerFrame);
                
                if ($filename === false) {
                    Header("Content-type: image/png");
                    ImagePng($image);
                } else {
                    if($saveandprint===TRUE){
                        ImagePng($image, $filename);
                        header("Content-type: image/png");
                        ImagePng($image);
                    }else{
                        ImagePng($image, $filename);
                    }
                }
                
                ImageDestroy($image);
            }
        
            //----------------------------------------------------------------------
            public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
            {
                $image = self::image($frame, $pixelPerPoint, $outerFrame);
                
                if ($filename === false) {
                    Header("Content-type: image/jpeg");
                    ImageJpeg($image, null, $q);
                } else {
                    ImageJpeg($image, $filename, $q);            
                }
                
                ImageDestroy($image);
            }
        
            //----------------------------------------------------------------------
            private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
            {
                $h = count($frame);
                $w = strlen($frame[0]);
                
                $imgW = $w + 2*$outerFrame;
                $imgH = $h + 2*$outerFrame;
                
                $base_image =ImageCreate($imgW, $imgH);
                
                $col[0] = ImageColorAllocate($base_image,255,255,255);
                $col[1] = ImageColorAllocate($base_image,0,0,0);
    
                imagefill($base_image, 0, 0, $col[0]);
    
                for($y=0; $y<$h; $y++) {
                    for($x=0; $x<$w; $x++) {
                        if ($frame[$y][$x] == '1') {
                            ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
                        }
                    }
                }
                
                $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
                ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
                ImageDestroy($base_image);
                
                return $target_image;
            }
        }
    
    
    
    //---- qrinput.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Input encoding class
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        define('STRUCTURE_HEADER_BITS',  20);
        define('MAX_STRUCTURED_SYMBOLS', 16);
    
        class QRinputItem {
        
            public $mode;
            public $size;
            public $data;
            public $bstream;
    
            public function __construct($mode, $size, $data, $bstream = null) 
            {
                $setData = array_slice($data, 0, $size);
                
                if (count($setData) < $size) {
                    $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
                }
            
                if(!QRinput::check($mode, $size, $setData)) {
                    throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
                    return null;
                }
                
                $this->mode = $mode;
                $this->size = $size;
                $this->data = $setData;
                $this->bstream = $bstream;
            }
            
            //----------------------------------------------------------------------
            public function encodeModeNum($version)
            {
                try {
                
                    $words = (int)($this->size / 3);
                    $bs = new QRbitstream();
                    
                    $val = 0x1;
                    $bs->appendNum(4, $val);
                    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
    
                    for($i=0; $i<$words; $i++) {
                        $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
                        $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
                        $val += (ord($this->data[$i*3+2]) - ord('0'));
                        $bs->appendNum(10, $val);
                    }
    
                    if($this->size - $words * 3 == 1) {
                        $val = ord($this->data[$words*3]) - ord('0');
                        $bs->appendNum(4, $val);
                    } else if($this->size - $words * 3 == 2) {
                        $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
                        $val += (ord($this->data[$words*3+1]) - ord('0'));
                        $bs->appendNum(7, $val);
                    }
    
                    $this->bstream = $bs;
                    return 0;
                    
                } catch (Exception $e) {
                    return -1;
                }
            }
            
            //----------------------------------------------------------------------
            public function encodeModeAn($version)
            {
                try {
                    $words = (int)($this->size / 2);
                    $bs = new QRbitstream();
                    
                    $bs->appendNum(4, 0x02);
                    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
    
                    for($i=0; $i<$words; $i++) {
                        $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
                        $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
    
                        $bs->appendNum(11, $val);
                    }
    
                    if($this->size & 1) {
                        $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
                        $bs->appendNum(6, $val);
                    }
            
                    $this->bstream = $bs;
                    return 0;
                
                } catch (Exception $e) {
                    return -1;
                }
            }
            
            //----------------------------------------------------------------------
            public function encodeMode8($version)
            {
                try {
                    $bs = new QRbitstream();
    
                    $bs->appendNum(4, 0x4);
                    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
    
                    for($i=0; $i<$this->size; $i++) {
                        $bs->appendNum(8, ord($this->data[$i]));
                    }
    
                    $this->bstream = $bs;
                    return 0;
                
                } catch (Exception $e) {
                    return -1;
                }
            }
            
            //----------------------------------------------------------------------
            public function encodeModeKanji($version)
            {
                try {
    
                    $bs = new QRbitrtream();
                    
                    $bs->appendNum(4, 0x8);
                    $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
    
                    for($i=0; $i<$this->size; $i+=2) {
                        $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
                        if($val <= 0x9ffc) {
                            $val -= 0x8140;
                        } else {
                            $val -= 0xc140;
                        }
                        
                        $h = ($val >> 8) * 0xc0;
                        $val = ($val & 0xff) + $h;
    
                        $bs->appendNum(13, $val);
                    }
    
                    $this->bstream = $bs;
                    return 0;
                
                } catch (Exception $e) {
                    return -1;
                }
            }
    
            //----------------------------------------------------------------------
            public function encodeModeStructure()
            {
                try {
                    $bs =  new QRbitstream();
                    
                    $bs->appendNum(4, 0x03);
                    $bs->appendNum(4, ord($this->data[1]) - 1);
                    $bs->appendNum(4, ord($this->data[0]) - 1);
                    $bs->appendNum(8, ord($this->data[2]));
    
                    $this->bstream = $bs;
                    return 0;
                
                } catch (Exception $e) {
                    return -1;
                }
            }
            
            //----------------------------------------------------------------------
            public function estimateBitStreamSizeOfEntry($version)
            {
                $bits = 0;
    
                if($version == 0) 
                    $version = 1;
    
                switch($this->mode) {
                    case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
                    case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
                    case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
                    case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
                    case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
                    default:
                        return 0;
                }
    
                $l = QRspec::lengthIndicator($this->mode, $version);
                $m = 1 << $l;
                $num = (int)(($this->size + $m - 1) / $m);
    
                $bits += $num * (4 + $l);
    
                return $bits;
            }
            
            //----------------------------------------------------------------------
            public function encodeBitStream($version)
            {
                try {
                
                    unset($this->bstream);
                    $words = QRspec::maximumWords($this->mode, $version);
                    
                    if($this->size > $words) {
                    
                        $st1 = new QRinputItem($this->mode, $words, $this->data);
                        $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
    
                        $st1->encodeBitStream($version);
                        $st2->encodeBitStream($version);
                        
                        $this->bstream = new QRbitstream();
                        $this->bstream->append($st1->bstream);
                        $this->bstream->append($st2->bstream);
                        
                        unset($st1);
                        unset($st2);
                        
                    } else {
                        
                        $ret = 0;
                        
                        switch($this->mode) {
                            case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
                            case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
                            case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
                            case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
                            case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
                            
                            default:
                                break;
                        }
                        
                        if($ret < 0)
                            return -1;
                    }
    
                    return $this->bstream->size();
                
                } catch (Exception $e) {
                    return -1;
                }
            }
        };
        
        //##########################################################################
    
        class QRinput {
    
            public $items;
            
            private $version;
            private $level;
            
            //----------------------------------------------------------------------
            public function __construct($version = 0, $level = QR_ECLEVEL_L)
            {
                if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
                    throw new Exception('Invalid version no');
                    return NULL;
                }
                
                $this->version = $version;
                $this->level = $level;
            }
            
            //----------------------------------------------------------------------
            public function getVersion()
            {
                return $this->version;
            }
            
            //----------------------------------------------------------------------
            public function setVersion($version)
            {
                if($version < 0 || $version > QRSPEC_VERSION_MAX) {
                    throw new Exception('Invalid version no');
                    return -1;
                }
    
                $this->version = $version;
    
                return 0;
            }
            
            //----------------------------------------------------------------------
            public function getErrorCorrectionLevel()
            {
                return $this->level;
            }
    
            //----------------------------------------------------------------------
            public function setErrorCorrectionLevel($level)
            {
                if($level > QR_ECLEVEL_H) {
                    throw new Exception('Invalid ECLEVEL');
                    return -1;
                }
    
                $this->level = $level;
    
                return 0;
            }
            
            //----------------------------------------------------------------------
            public function appendEntry(QRinputItem $entry)
            {
                $this->items[] = $entry;
            }
            
            //----------------------------------------------------------------------
            public function append($mode, $size, $data)
            {
                try {
                    $entry = new QRinputItem($mode, $size, $data);
                    $this->items[] = $entry;
                    return 0;
                } catch (Exception $e) {
                    return -1;
                }
            }
            
            //----------------------------------------------------------------------
            
            public function insertStructuredAppendHeader($size, $index, $parity)
            {
                if( $size > MAX_STRUCTURED_SYMBOLS ) {
                    throw new Exception('insertStructuredAppendHeader wrong size');
                }
                
                if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
                    throw new Exception('insertStructuredAppendHeader wrong index');
                }
    
                $buf = array($size, $index, $parity);
                
                try {
                    $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
                    array_unshift($this->items, $entry);
                    return 0;
                } catch (Exception $e) {
                    return -1;
                }
            }
    
            //----------------------------------------------------------------------
            public function calcParity()
            {
                $parity = 0;
                
                foreach($this->items as $item) {
                    if($item->mode != QR_MODE_STRUCTURE) {
                        for($i=$item->size-1; $i>=0; $i--) {
                            $parity ^= $item->data[$i];
                        }
                    }
                }
    
                return $parity;
            }
            
            //----------------------------------------------------------------------
            public static function checkModeNum($size, $data)
            {
                for($i=0; $i<$size; $i++) {
                    if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
                        return false;
                    }
                }
    
                return true;
            }
    
            //----------------------------------------------------------------------
            public static function estimateBitsModeNum($size)
            {
                $w = (int)$size / 3;
                $bits = $w * 10;
                
                switch($size - $w * 3) {
                    case 1:
                        $bits += 4;
                        break;
                    case 2:
                        $bits += 7;
                        break;
                    default:
                        break;
                }
    
                return $bits;
            }
            
            //----------------------------------------------------------------------
            public static $anTable = array(
                -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
                -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
                36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
                 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
                -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
                25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
                -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
                -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
            );
            
            //----------------------------------------------------------------------
            public static function lookAnTable($c)
            {
                return (($c > 127)?-1:self::$anTable[$c]);
            }
            
            //----------------------------------------------------------------------
            public static function checkModeAn($size, $data)
            {
                for($i=0; $i<$size; $i++) {
                    if (self::lookAnTable(ord($data[$i])) == -1) {
                        return false;
                    }
                }
    
                return true;
            }
            
            //----------------------------------------------------------------------
            public static function estimateBitsModeAn($size)
            {
                $w = (int)($size / 2);
                $bits = $w * 11;
                
                if($size & 1) {
                    $bits += 6;
                }
    
                return $bits;
            }
        
            //----------------------------------------------------------------------
            public static function estimateBitsMode8($size)
            {
                return $size * 8;
            }
            
            //----------------------------------------------------------------------
            public function estimateBitsModeKanji($size)
            {
                return (int)(($size / 2) * 13);
            }
            
            //----------------------------------------------------------------------
            public static function checkModeKanji($size, $data)
            {
                if($size & 1)
                    return false;
    
                for($i=0; $i<$size; $i+=2) {
                    $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
                    if( $val < 0x8140 
                    || ($val > 0x9ffc && $val < 0xe040) 
                    || $val > 0xebbf) {
                        return false;
                    }
                }
    
                return true;
            }
    
            /***********************************************************************
             * Validation
             **********************************************************************/
    
            public static function check($mode, $size, $data)
            {
                if($size <= 0) 
                    return false;
    
                switch($mode) {
                    case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
                    case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
                    case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
                    case QR_MODE_8:         return true; break;
                    case QR_MODE_STRUCTURE: return true; break;
                    
                    default:
                        break;
                }
    
                return false;
            }
            
            
            //----------------------------------------------------------------------
            public function estimateBitStreamSize($version)
            {
                $bits = 0;
    
                foreach($this->items as $item) {
                    $bits += $item->estimateBitStreamSizeOfEntry($version);
                }
    
                return $bits;
            }
            
            //----------------------------------------------------------------------
            public function estimateVersion()
            {
                $version = 0;
                $prev = 0;
                do {
                    $prev = $version;
                    $bits = $this->estimateBitStreamSize($prev);
                    $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
                    if ($version < 0) {
                        return -1;
                    }
                } while ($version > $prev);
    
                return $version;
            }
            
            //----------------------------------------------------------------------
            public static function lengthOfCode($mode, $version, $bits)
            {
                $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
                switch($mode) {
                    case QR_MODE_NUM:
                        $chunks = (int)($payload / 10);
                        $remain = $payload - $chunks * 10;
                        $size = $chunks * 3;
                        if($remain >= 7) {
                            $size += 2;
                        } else if($remain >= 4) {
                            $size += 1;
                        }
                        break;
                    case QR_MODE_AN:
                        $chunks = (int)($payload / 11);
                        $remain = $payload - $chunks * 11;
                        $size = $chunks * 2;
                        if($remain >= 6) 
                            $size++;
                        break;
                    case QR_MODE_8:
                        $size = (int)($payload / 8);
                        break;
                    case QR_MODE_KANJI:
                        $size = (int)(($payload / 13) * 2);
                        break;
                    case QR_MODE_STRUCTURE:
                        $size = (int)($payload / 8);
                        break;
                    default:
                        $size = 0;
                        break;
                }
                
                $maxsize = QRspec::maximumWords($mode, $version);
                if($size < 0) $size = 0;
                if($size > $maxsize) $size = $maxsize;
    
                return $size;
            }
            
            //----------------------------------------------------------------------
            public function createBitStream()
            {
                $total = 0;
    
                foreach($this->items as $item) {
                    $bits = $item->encodeBitStream($this->version);
                    
                    if($bits < 0) 
                        return -1;
                        
                    $total += $bits;
                }
    
                return $total;
            }
            
            //----------------------------------------------------------------------
            public function convertData()
            {
                $ver = $this->estimateVersion();
                if($ver > $this->getVersion()) {
                    $this->setVersion($ver);
                }
    
                for(;;) {
                    $bits = $this->createBitStream();
                    
                    if($bits < 0) 
                        return -1;
                        
                    $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
                    if($ver < 0) {
                        throw new Exception('WRONG VERSION');
                        return -1;
                    } else if($ver > $this->getVersion()) {
                        $this->setVersion($ver);
                    } else {
                        break;
                    }
                }
    
                return 0;
            }
            
            //----------------------------------------------------------------------
            public function appendPaddingBit(&$bstream)
            {
                $bits = $bstream->size();
                $maxwords = QRspec::getDataLength($this->version, $this->level);
                $maxbits = $maxwords * 8;
    
                if ($maxbits == $bits) {
                    return 0;
                }
    
                if ($maxbits - $bits < 5) {
                    return $bstream->appendNum($maxbits - $bits, 0);
                }
    
                $bits += 4;
                $words = (int)(($bits + 7) / 8);
    
                $padding = new QRbitstream();
                $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
                
                if($ret < 0) 
                    return $ret;
    
                $padlen = $maxwords - $words;
                
                if($padlen > 0) {
                    
                    $padbuf = array();
                    for($i=0; $i<$padlen; $i++) {
                        $padbuf[$i] = ($i&1)?0x11:0xec;
                    }
                    
                    $ret = $padding->appendBytes($padlen, $padbuf);
                    
                    if($ret < 0)
                        return $ret;
                    
                }
    
                $ret = $bstream->append($padding);
                
                return $ret;
            }
    
            //----------------------------------------------------------------------
            public function mergeBitStream()
            {
                if($this->convertData() < 0) {
                    return null;
                }
    
                $bstream = new QRbitstream();
                
                foreach($this->items as $item) {
                    $ret = $bstream->append($item->bstream);
                    if($ret < 0) {
                        return null;
                    }
                }
    
                return $bstream;
            }
    
            //----------------------------------------------------------------------
            public function getBitStream()
            {
    
                $bstream = $this->mergeBitStream();
                
                if($bstream == null) {
                    return null;
                }
                
                $ret = $this->appendPaddingBit($bstream);
                if($ret < 0) {
                    return null;
                }
    
                return $bstream;
            }
            
            //----------------------------------------------------------------------
            public function getByteStream()
            {
                $bstream = $this->getBitStream();
                if($bstream == null) {
                    return null;
                }
                
                return $bstream->toByte();
            }
        }
            
            
        
    
    
    
    //---- qrbitstream.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Bitstream class
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
         
        class QRbitstream {
        
            public $data = array();
            
            //----------------------------------------------------------------------
            public function size()
            {
                return count($this->data);
            }
            
            //----------------------------------------------------------------------
            public function allocate($setLength)
            {
                $this->data = array_fill(0, $setLength, 0);
                return 0;
            }
        
            //----------------------------------------------------------------------
            public static function newFromNum($bits, $num)
            {
                $bstream = new QRbitstream();
                $bstream->allocate($bits);
                
                $mask = 1 << ($bits - 1);
                for($i=0; $i<$bits; $i++) {
                    if($num & $mask) {
                        $bstream->data[$i] = 1;
                    } else {
                        $bstream->data[$i] = 0;
                    }
                    $mask = $mask >> 1;
                }
    
                return $bstream;
            }
            
            //----------------------------------------------------------------------
            public static function newFromBytes($size, $data)
            {
                $bstream = new QRbitstream();
                $bstream->allocate($size * 8);
                $p=0;
    
                for($i=0; $i<$size; $i++) {
                    $mask = 0x80;
                    for($j=0; $j<8; $j++) {
                        if($data[$i] & $mask) {
                            $bstream->data[$p] = 1;
                        } else {
                            $bstream->data[$p] = 0;
                        }
                        $p++;
                        $mask = $mask >> 1;
                    }
                }
    
                return $bstream;
            }
            
            //----------------------------------------------------------------------
            public function append(QRbitstream $arg)
            {
                if (is_null($arg)) {
                    return -1;
                }
                
                if($arg->size() == 0) {
                    return 0;
                }
                
                if($this->size() == 0) {
                    $this->data = $arg->data;
                    return 0;
                }
                
                $this->data = array_values(array_merge($this->data, $arg->data));
    
                return 0;
            }
            
            //----------------------------------------------------------------------
            public function appendNum($bits, $num)
            {
                if ($bits == 0) 
                    return 0;
    
                $b = QRbitstream::newFromNum($bits, $num);
                
                if(is_null($b))
                    return -1;
    
                $ret = $this->append($b);
                unset($b);
    
                return $ret;
            }
    
            //----------------------------------------------------------------------
            public function appendBytes($size, $data)
            {
                if ($size == 0) 
                    return 0;
    
                $b = QRbitstream::newFromBytes($size, $data);
                
                if(is_null($b))
                    return -1;
    
                $ret = $this->append($b);
                unset($b);
    
                return $ret;
            }
            
            //----------------------------------------------------------------------
            public function toByte()
            {
            
                $size = $this->size();
    
                if($size == 0) {
                    return array();
                }
                
                $data = array_fill(0, (int)(($size + 7) / 8), 0);
                $bytes = (int)($size / 8);
    
                $p = 0;
                
                for($i=0; $i<$bytes; $i++) {
                    $v = 0;
                    for($j=0; $j<8; $j++) {
                        $v = $v << 1;
                        $v |= $this->data[$p];
                        $p++;
                    }
                    $data[$i] = $v;
                }
                
                if($size & 7) {
                    $v = 0;
                    for($j=0; $j<($size & 7); $j++) {
                        $v = $v << 1;
                        $v |= $this->data[$p];
                        $p++;
                    }
                    $data[$bytes] = $v;
                }
    
                return $data;
            }
    
        }
    
    
    
    
    //---- qrsplit.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Input splitting classes
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * The following data / specifications are taken from
     * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
     *  or
     * "Automatic identification and data capture techniques -- 
     *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
        class QRsplit {
    
            public $dataStr = '';
            public $input;
            public $modeHint;
    
            //----------------------------------------------------------------------
            public function __construct($dataStr, $input, $modeHint) 
            {
                $this->dataStr  = $dataStr;
                $this->input    = $input;
                $this->modeHint = $modeHint;
            }
            
            //----------------------------------------------------------------------
            public static function isdigitat($str, $pos)
            {    
                if ($pos >= strlen($str))
                    return false;
                
                return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
            }
            
            //----------------------------------------------------------------------
            public static function isalnumat($str, $pos)
            {
                if ($pos >= strlen($str))
                    return false;
                    
                return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
            }
    
            //----------------------------------------------------------------------
            public function identifyMode($pos)
            {
                if ($pos >= strlen($this->dataStr)) 
                    return QR_MODE_NUL;
                    
                $c = $this->dataStr[$pos];
                
                if(self::isdigitat($this->dataStr, $pos)) {
                    return QR_MODE_NUM;
                } else if(self::isalnumat($this->dataStr, $pos)) {
                    return QR_MODE_AN;
                } else if($this->modeHint == QR_MODE_KANJI) {
                
                    if ($pos+1 < strlen($this->dataStr)) 
                    {
                        $d = $this->dataStr[$pos+1];
                        $word = (ord($c) << 8) | ord($d);
                        if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
                            return QR_MODE_KANJI;
                        }
                    }
                }
    
                return QR_MODE_8;
            } 
            
            //----------------------------------------------------------------------
            public function eatNum()
            {
                $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
    
                $p = 0;
                while(self::isdigitat($this->dataStr, $p)) {
                    $p++;
                }
                
                $run = $p;
                $mode = $this->identifyMode($p);
                
                if($mode == QR_MODE_8) {
                    $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
                         + QRinput::estimateBitsMode8(1)         // + 4 + l8
                         - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
                    if($dif > 0) {
                        return $this->eat8();
                    }
                }
                if($mode == QR_MODE_AN) {
                    $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
                         + QRinput::estimateBitsModeAn(1)        // + 4 + la
                         - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
                    if($dif > 0) {
                        return $this->eatAn();
                    }
                }
                
                $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
                if($ret < 0)
                    return -1;
    
                return $run;
            }
            
            //----------------------------------------------------------------------
            public function eatAn()
            {
                $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
                $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
    
                $p = 0;
                
                while(self::isalnumat($this->dataStr, $p)) {
                    if(self::isdigitat($this->dataStr, $p)) {
                        $q = $p;
                        while(self::isdigitat($this->dataStr, $q)) {
                            $q++;
                        }
                        
                        $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
                             + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
                             - QRinput::estimateBitsModeAn($q); // - 4 - la
                             
                        if($dif < 0) {
                            break;
                        } else {
                            $p = $q;
                        }
                    } else {
                        $p++;
                    }
                }
    
                $run = $p;
    
                if(!self::isalnumat($this->dataStr, $p)) {
                    $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
                         + QRinput::estimateBitsMode8(1) // + 4 + l8
                          - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
                    if($dif > 0) {
                        return $this->eat8();
                    }
                }
    
                $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
                if($ret < 0)
                    return -1;
    
                return $run;
            }
            
            //----------------------------------------------------------------------
            public function eatKanji()
            {
                $p = 0;
                
                while($this->identifyMode($p) == QR_MODE_KANJI) {
                    $p += 2;
                }
                
                $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
                if($ret < 0)
                    return -1;
    
                return $run;
            }
    
            //----------------------------------------------------------------------
            public function eat8()
            {
                $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
                $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
    
                $p = 1;
                $dataStrLen = strlen($this->dataStr);
                
                while($p < $dataStrLen) {
                    
                    $mode = $this->identifyMode($p);
                    if($mode == QR_MODE_KANJI) {
                        break;
                    }
                    if($mode == QR_MODE_NUM) {
                        $q = $p;
                        while(self::isdigitat($this->dataStr, $q)) {
                            $q++;
                        }
                        $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
                             + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
                             - QRinput::estimateBitsMode8($q); // - 4 - l8
                        if($dif < 0) {
                            break;
                        } else {
                            $p = $q;
                        }
                    } else if($mode == QR_MODE_AN) {
                        $q = $p;
                        while(self::isalnumat($this->dataStr, $q)) {
                            $q++;
                        }
                        $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
                             + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
                             - QRinput::estimateBitsMode8($q); // - 4 - l8
                        if($dif < 0) {
                            break;
                        } else {
                            $p = $q;
                        }
                    } else {
                        $p++;
                    }
                }
    
                $run = $p;
                $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
                
                if($ret < 0)
                    return -1;
    
                return $run;
            }
    
            //----------------------------------------------------------------------
            public function splitString()
            {
                while (strlen($this->dataStr) > 0)
                {
                    if($this->dataStr == '')
                        return 0;
    
                    $mode = $this->identifyMode(0);
                    
                    switch ($mode) {
                        case QR_MODE_NUM: $length = $this->eatNum(); break;
                        case QR_MODE_AN:  $length = $this->eatAn(); break;
                        case QR_MODE_KANJI:
                            if ($hint == QR_MODE_KANJI)
                                    $length = $this->eatKanji();
                            else    $length = $this->eat8();
                            break;
                        default: $length = $this->eat8(); break;
                    
                    }
    
                    if($length == 0) return 0;
                    if($length < 0)  return -1;
                    
                    $this->dataStr = substr($this->dataStr, $length);
                }
            }
    
            //----------------------------------------------------------------------
            public function toUpper()
            {
                $stringLen = strlen($this->dataStr);
                $p = 0;
                
                while ($p<$stringLen) {
                    $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
                    if($mode == QR_MODE_KANJI) {
                        $p += 2;
                    } else {
                        if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
                            $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
                        }
                        $p++;
                    }
                }
    
                return $this->dataStr;
            }
    
            //----------------------------------------------------------------------
            public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
            {
                if(is_null($string) || $string == '' || $string == '') {
                    throw new Exception('empty string!!!');
                }
    
                $split = new QRsplit($string, $input, $modeHint);
                
                if(!$casesensitive)
                    $split->toUpper();
                    
                return $split->splitString();
            }
        }
    
    
    
    //---- qrrscode.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Reed-Solomon error correction support
     * 
     * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
     * (libfec is released under the GNU Lesser General Public License.)
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        class QRrsItem {
        
            public $mm;                  // Bits per symbol 
            public $nn;                  // Symbols per block (= (1<<mm)-1) 
            public $alpha_to = array();  // log lookup table 
            public $index_of = array();  // Antilog lookup table 
            public $genpoly = array();   // Generator polynomial 
            public $nroots;              // Number of generator roots = number of parity symbols 
            public $fcr;                 // First consecutive root, index form 
            public $prim;                // Primitive element, index form 
            public $iprim;               // prim-th root of 1, index form 
            public $pad;                 // Padding bytes in shortened block 
            public $gfpoly;
        
            //----------------------------------------------------------------------
            public function modnn($x)
            {
                while ($x >= $this->nn) {
                    $x -= $this->nn;
                    $x = ($x >> $this->mm) + ($x & $this->nn);
                }
                
                return $x;
            }
            
            //----------------------------------------------------------------------
            public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
            {
                // Common code for intializing a Reed-Solomon control block (char or int symbols)
                // Copyright 2004 Phil Karn, KA9Q
                // May be used under the terms of the GNU Lesser General Public License (LGPL)
    
                $rs = null;
                
                // Check parameter ranges
                if($symsize < 0 || $symsize > 8)                     return $rs;
                if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
                if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
                if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
                if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
    
                $rs = new QRrsItem();
                $rs->mm = $symsize;
                $rs->nn = (1<<$symsize)-1;
                $rs->pad = $pad;
    
                $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
                $rs->index_of = array_fill(0, $rs->nn+1, 0);
              
                // PHP style macro replacement ;)
                $NN =& $rs->nn;
                $A0 =& $NN;
                
                // Generate Galois field lookup tables
                $rs->index_of[0] = $A0; // log(zero) = -inf
                $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
                $sr = 1;
              
                for($i=0; $i<$rs->nn; $i++) {
                    $rs->index_of[$sr] = $i;
                    $rs->alpha_to[$i] = $sr;
                    $sr <<= 1;
                    if($sr & (1<<$symsize)) {
                        $sr ^= $gfpoly;
                    }
                    $sr &= $rs->nn;
                }
                
                if($sr != 1){
                    // field generator polynomial is not primitive!
                    $rs = NULL;
                    return $rs;
                }
    
                /* Form RS code generator polynomial from its roots */
                $rs->genpoly = array_fill(0, $nroots+1, 0);
            
                $rs->fcr = $fcr;
                $rs->prim = $prim;
                $rs->nroots = $nroots;
                $rs->gfpoly = $gfpoly;
    
                /* Find prim-th root of 1, used in decoding */
                for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
                ; // intentional empty-body loop!
                
                $rs->iprim = (int)($iprim / $prim);
                $rs->genpoly[0] = 1;
                
                for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
                    $rs->genpoly[$i+1] = 1;
    
                    // Multiply rs->genpoly[] by  @**(root + x)
                    for ($j = $i; $j > 0; $j--) {
                        if ($rs->genpoly[$j] != 0) {
                            $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
                        } else {
                            $rs->genpoly[$j] = $rs->genpoly[$j-1];
                        }
                    }
                    // rs->genpoly[0] can never be zero
                    $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
                }
                
                // convert rs->genpoly[] to index form for quicker encoding
                for ($i = 0; $i <= $nroots; $i++)
                    $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
    
                return $rs;
            }
            
            //----------------------------------------------------------------------
            public function encode_rs_char($data, &$parity)
            {
                $MM       =& $this->mm;
                $NN       =& $this->nn;
                $ALPHA_TO =& $this->alpha_to;
                $INDEX_OF =& $this->index_of;
                $GENPOLY  =& $this->genpoly;
                $NROOTS   =& $this->nroots;
                $FCR      =& $this->fcr;
                $PRIM     =& $this->prim;
                $IPRIM    =& $this->iprim;
                $PAD      =& $this->pad;
                $A0       =& $NN;
    
                $parity = array_fill(0, $NROOTS, 0);
    
                for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
                    
                    $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
                    if($feedback != $A0) {      
                        // feedback term is non-zero
                
                        // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
                        // always be for the polynomials constructed by init_rs()
                        $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
                
                        for($j=1;$j<$NROOTS;$j++) {
                            $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
                        }
                    }
                    
                    // Shift 
                    array_shift($parity);
                    if($feedback != $A0) {
                        array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
                    } else {
                        array_push($parity, 0);
                    }
                }
            }
        }
        
        //##########################################################################
        
        class QRrs {
        
            public static $items = array();
            
            //----------------------------------------------------------------------
            public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
            {
                foreach(self::$items as $rs) {
                    if($rs->pad != $pad)       continue;
                    if($rs->nroots != $nroots) continue;
                    if($rs->mm != $symsize)    continue;
                    if($rs->gfpoly != $gfpoly) continue;
                    if($rs->fcr != $fcr)       continue;
                    if($rs->prim != $prim)     continue;
    
                    return $rs;
                }
    
                $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
                array_unshift(self::$items, $rs);
    
                return $rs;
            }
        }
    
    
    
    //---- qrmask.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Masking
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        define('N1', 3);
        define('N2', 3);
        define('N3', 40);
        define('N4', 10);
    
        class QRmask {
        
            public $runLength = array();
            
            //----------------------------------------------------------------------
            public function __construct() 
            {
                $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
            }
            
            //----------------------------------------------------------------------
            public function writeFormatInformation($width, &$frame, $mask, $level)
            {
                $blacks = 0;
                $format =  QRspec::getFormatInfo($mask, $level);
    
                for($i=0; $i<8; $i++) {
                    if($format & 1) {
                        $blacks += 2;
                        $v = 0x85;
                    } else {
                        $v = 0x84;
                    }
                    
                    $frame[8][$width - 1 - $i] = chr($v);
                    if($i < 6) {
                        $frame[$i][8] = chr($v);
                    } else {
                        $frame[$i + 1][8] = chr($v);
                    }
                    $format = $format >> 1;
                }
                
                for($i=0; $i<7; $i++) {
                    if($format & 1) {
                        $blacks += 2;
                        $v = 0x85;
                    } else {
                        $v = 0x84;
                    }
                    
                    $frame[$width - 7 + $i][8] = chr($v);
                    if($i == 0) {
                        $frame[8][7] = chr($v);
                    } else {
                        $frame[8][6 - $i] = chr($v);
                    }
                    
                    $format = $format >> 1;
                }
    
                return $blacks;
            }
            
            //----------------------------------------------------------------------
            public function mask0($x, $y) { return ($x+$y)&1;                       }
            public function mask1($x, $y) { return ($y&1);                          }
            public function mask2($x, $y) { return ($x%3);                          }
            public function mask3($x, $y) { return ($x+$y)%3;                       }
            public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
            public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
            public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
            public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
            
            //----------------------------------------------------------------------
            private function generateMaskNo($maskNo, $width, $frame)
            {
                $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
                
                for($y=0; $y<$width; $y++) {
                    for($x=0; $x<$width; $x++) {
                        if(ord($frame[$y][$x]) & 0x80) {
                            $bitMask[$y][$x] = 0;
                        } else {
                            $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
                            $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
                        }
                        
                    }
                }
                
                return $bitMask;
            }
            
            //----------------------------------------------------------------------
            public static function serial($bitFrame)
            {
                $codeArr = array();
                
                foreach ($bitFrame as $line)
                    $codeArr[] = join('', $line);
                    
                return gzcompress(join("
    ", $codeArr), 9);
            }
            
            //----------------------------------------------------------------------
            public static function unserial($code)
            {
                $codeArr = array();
                
                $codeLines = explode("
    ", gzuncompress($code));
                foreach ($codeLines as $line)
                    $codeArr[] = str_split($line);
                
                return $codeArr;
            }
            
            //----------------------------------------------------------------------
            public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
            {
                $b = 0;
                $bitMask = array();
                
                $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
    
                if (QR_CACHEABLE) {
                    if (file_exists($fileName)) {
                        $bitMask = self::unserial(file_get_contents($fileName));
                    } else {
                        $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
                        if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
                            mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
                        file_put_contents($fileName, self::serial($bitMask));
                    }
                } else {
                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
                }
    
                if ($maskGenOnly)
                    return;
                    
                $d = $s;
    
                for($y=0; $y<$width; $y++) {
                    for($x=0; $x<$width; $x++) {
                        if($bitMask[$y][$x] == 1) {
                            $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
                        }
                        $b += (int)(ord($d[$y][$x]) & 1);
                    }
                }
    
                return $b;
            }
            
            //----------------------------------------------------------------------
            public function makeMask($width, $frame, $maskNo, $level)
            {
                $masked = array_fill(0, $width, str_repeat("", $width));
                $this->makeMaskNo($maskNo, $width, $frame, $masked);
                $this->writeFormatInformation($width, $masked, $maskNo, $level);
           
                return $masked;
            }
            
            //----------------------------------------------------------------------
            public function calcN1N3($length)
            {
                $demerit = 0;
    
                for($i=0; $i<$length; $i++) {
                    
                    if($this->runLength[$i] >= 5) {
                        $demerit += (N1 + ($this->runLength[$i] - 5));
                    }
                    if($i & 1) {
                        if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
                            $fact = (int)($this->runLength[$i] / 3);
                            if(($this->runLength[$i-2] == $fact) &&
                               ($this->runLength[$i-1] == $fact) &&
                               ($this->runLength[$i+1] == $fact) &&
                               ($this->runLength[$i+2] == $fact)) {
                                if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
                                    $demerit += N3;
                                } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
                                    $demerit += N3;
                                }
                            }
                        }
                    }
                }
                return $demerit;
            }
            
            //----------------------------------------------------------------------
            public function evaluateSymbol($width, $frame)
            {
                $head = 0;
                $demerit = 0;
    
                for($y=0; $y<$width; $y++) {
                    $head = 0;
                    $this->runLength[0] = 1;
                    
                    $frameY = $frame[$y];
                    
                    if ($y>0)
                        $frameYM = $frame[$y-1];
                    
                    for($x=0; $x<$width; $x++) {
                        if(($x > 0) && ($y > 0)) {
                            $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
                            $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
                            
                            if(($b22 | ($w22 ^ 1))&1) {                                                                     
                                $demerit += N2;
                            }
                        }
                        if(($x == 0) && (ord($frameY[$x]) & 1)) {
                            $this->runLength[0] = -1;
                            $head = 1;
                            $this->runLength[$head] = 1;
                        } else if($x > 0) {
                            if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
                                $head++;
                                $this->runLength[$head] = 1;
                            } else {
                                $this->runLength[$head]++;
                            }
                        }
                    }
        
                    $demerit += $this->calcN1N3($head+1);
                }
    
                for($x=0; $x<$width; $x++) {
                    $head = 0;
                    $this->runLength[0] = 1;
                    
                    for($y=0; $y<$width; $y++) {
                        if($y == 0 && (ord($frame[$y][$x]) & 1)) {
                            $this->runLength[0] = -1;
                            $head = 1;
                            $this->runLength[$head] = 1;
                        } else if($y > 0) {
                            if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
                                $head++;
                                $this->runLength[$head] = 1;
                            } else {
                                $this->runLength[$head]++;
                            }
                        }
                    }
                
                    $demerit += $this->calcN1N3($head+1);
                }
    
                return $demerit;
            }
            
            
            //----------------------------------------------------------------------
            public function mask($width, $frame, $level)
            {
                $minDemerit = PHP_INT_MAX;
                $bestMaskNum = 0;
                $bestMask = array();
                
                $checked_masks = array(0,1,2,3,4,5,6,7);
                
                if (QR_FIND_FROM_RANDOM !== false) {
                
                    $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
                    for ($i = 0; $i <  $howManuOut; $i++) {
                        $remPos = rand (0, count($checked_masks)-1);
                        unset($checked_masks[$remPos]);
                        $checked_masks = array_values($checked_masks);
                    }
                
                }
                
                $bestMask = $frame;
                 
                foreach($checked_masks as $i) {
                    $mask = array_fill(0, $width, str_repeat("", $width));
    
                    $demerit = 0;
                    $blacks = 0;
                    $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
                    $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
                    $blacks  = (int)(100 * $blacks / ($width * $width));
                    $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
                    $demerit += $this->evaluateSymbol($width, $mask);
                    
                    if($demerit < $minDemerit) {
                        $minDemerit = $demerit;
                        $bestMask = $mask;
                        $bestMaskNum = $i;
                    }
                }
                
                return $bestMask;
            }
            
            //----------------------------------------------------------------------
        }
    
    
    
    
    //---- qrencode.php -----------------------------
    
    
    
    
    /*
     * PHP QR Code encoder
     *
     * Main encoder classes.
     *
     * Based on libqrencode C library distributed under LGPL 2.1
     * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
     *
     * PHP QR Code is distributed under LGPL 3
     * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
     *
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or any later version.
     *
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     */
     
        class QRrsblock {
            public $dataLength;
            public $data = array();
            public $eccLength;
            public $ecc = array();
            
            public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
            {
                $rs->encode_rs_char($data, $ecc);
            
                $this->dataLength = $dl;
                $this->data = $data;
                $this->eccLength = $el;
                $this->ecc = $ecc;
            }
        };
        
        //##########################################################################
    
        class QRrawcode {
            public $version;
            public $datacode = array();
            public $ecccode = array();
            public $blocks;
            public $rsblocks = array(); //of RSblock
            public $count;
            public $dataLength;
            public $eccLength;
            public $b1;
            
            //----------------------------------------------------------------------
            public function __construct(QRinput $input)
            {
                $spec = array(0,0,0,0,0);
                
                $this->datacode = $input->getByteStream();
                if(is_null($this->datacode)) {
                    throw new Exception('null imput string');
                }
    
                QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
    
                $this->version = $input->getVersion();
                $this->b1 = QRspec::rsBlockNum1($spec);
                $this->dataLength = QRspec::rsDataLength($spec);
                $this->eccLength = QRspec::rsEccLength($spec);
                $this->ecccode = array_fill(0, $this->eccLength, 0);
                $this->blocks = QRspec::rsBlockNum($spec);
                
                $ret = $this->init($spec);
                if($ret < 0) {
                    throw new Exception('block alloc error');
                    return null;
                }
    
                $this->count = 0;
            }
            
            //----------------------------------------------------------------------
            public function init(array $spec)
            {
                $dl = QRspec::rsDataCodes1($spec);
                $el = QRspec::rsEccCodes1($spec);
                $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
                
    
                $blockNo = 0;
                $dataPos = 0;
                $eccPos = 0;
                for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
                    $ecc = array_slice($this->ecccode,$eccPos);
                    $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
                    $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
                    
                    $dataPos += $dl;
                    $eccPos += $el;
                    $blockNo++;
                }
    
                if(QRspec::rsBlockNum2($spec) == 0)
                    return 0;
    
                $dl = QRspec::rsDataCodes2($spec);
                $el = QRspec::rsEccCodes2($spec);
                $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
                
                if($rs == NULL) return -1;
                
                for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
                    $ecc = array_slice($this->ecccode,$eccPos);
                    $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
                    $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
                    
                    $dataPos += $dl;
                    $eccPos += $el;
                    $blockNo++;
                }
    
                return 0;
            }
            
            //----------------------------------------------------------------------
            public function getCode()
            {
                $ret;
    
                if($this->count < $this->dataLength) {
                    $row = $this->count % $this->blocks;
                    $col = $this->count / $this->blocks;
                    if($col >= $this->rsblocks[0]->dataLength) {
                        $row += $this->b1;
                    }
                    $ret = $this->rsblocks[$row]->data[$col];
                } else if($this->count < $this->dataLength + $this->eccLength) {
                    $row = ($this->count - $this->dataLength) % $this->blocks;
                    $col = ($this->count - $this->dataLength) / $this->blocks;
                    $ret = $this->rsblocks[$row]->ecc[$col];
                } else {
                    return 0;
                }
                $this->count++;
                
                return $ret;
            }
        }
    
        //##########################################################################
        
        class QRcode {
        
            public $version;
            public $width;
            public $data; 
            
            //----------------------------------------------------------------------
            public function encodeMask(QRinput $input, $mask)
            {
                if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
                    throw new Exception('wrong version');
                }
                if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
                    throw new Exception('wrong level');
                }
    
                $raw = new QRrawcode($input);
                
                QRtools::markTime('after_raw');
                
                $version = $raw->version;
                $width = QRspec::getWidth($version);
                $frame = QRspec::newFrame($version);
                
                $filler = new FrameFiller($width, $frame);
                if(is_null($filler)) {
                    return NULL;
                }
    
                // inteleaved data and ecc codes
                for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
                    $code = $raw->getCode();
                    $bit = 0x80;
                    for($j=0; $j<8; $j++) {
                        $addr = $filler->next();
                        $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
                        $bit = $bit >> 1;
                    }
                }
                
                QRtools::markTime('after_filler');
                
                unset($raw);
                
                // remainder bits
                $j = QRspec::getRemainder($version);
                for($i=0; $i<$j; $i++) {
                    $addr = $filler->next();
                    $filler->setFrameAt($addr, 0x02);
                }
                
                $frame = $filler->frame;
                unset($filler);
                
                
                // masking
                $maskObj = new QRmask();
                if($mask < 0) {
                
                    if (QR_FIND_BEST_MASK) {
                        $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
                    } else {
                        $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
                    }
                } else {
                    $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
                }
                
                if($masked == NULL) {
                    return NULL;
                }
                
                QRtools::markTime('after_mask');
                
                $this->version = $version;
                $this->width = $width;
                $this->data = $masked;
                
                return $this;
            }
        
            //----------------------------------------------------------------------
            public function encodeInput(QRinput $input)
            {
                return $this->encodeMask($input, -1);
            }
            
            //----------------------------------------------------------------------
            public function encodeString8bit($string, $version, $level)
            {
                if(string == NULL) {
                    throw new Exception('empty string!');
                    return NULL;
                }
    
                $input = new QRinput($version, $level);
                if($input == NULL) return NULL;
    
                $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
                if($ret < 0) {
                    unset($input);
                    return NULL;
                }
                return $this->encodeInput($input);
            }
    
            //----------------------------------------------------------------------
            public function encodeString($string, $version, $level, $hint, $casesensitive)
            {
    
                if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
                    throw new Exception('bad hint');
                    return NULL;
                }
    
                $input = new QRinput($version, $level);
                if($input == NULL) return NULL;
    
                $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
                if($ret < 0) {
                    return NULL;
                }
    
                return $this->encodeInput($input);
            }
            
            //----------------------------------------------------------------------
            public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
            {
                $enc = QRencode::factory($level, $size, $margin);
                return $enc->encodePNG($text, $outfile, $saveandprint=false);
            }
    
            //----------------------------------------------------------------------
            public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
            {
                $enc = QRencode::factory($level, $size, $margin);
                return $enc->encode($text, $outfile);
            }
    
            //----------------------------------------------------------------------
            public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
            {
                $enc = QRencode::factory($level, $size, $margin);
                return $enc->encodeRAW($text, $outfile);
            }
        }
        
        //##########################################################################
        
        class FrameFiller {
        
            public $width;
            public $frame;
            public $x;
            public $y;
            public $dir;
            public $bit;
            
            //----------------------------------------------------------------------
            public function __construct($width, &$frame)
            {
                $this->width = $width;
                $this->frame = $frame;
                $this->x = $width - 1;
                $this->y = $width - 1;
                $this->dir = -1;
                $this->bit = -1;
            }
            
            //----------------------------------------------------------------------
            public function setFrameAt($at, $val)
            {
                $this->frame[$at['y']][$at['x']] = chr($val);
            }
            
            //----------------------------------------------------------------------
            public function getFrameAt($at)
            {
                return ord($this->frame[$at['y']][$at['x']]);
            }
            
            //----------------------------------------------------------------------
            public function next()
            {
                do {
                
                    if($this->bit == -1) {
                        $this->bit = 0;
                        return array('x'=>$this->x, 'y'=>$this->y);
                    }
    
                    $x = $this->x;
                    $y = $this->y;
                    $w = $this->width;
    
                    if($this->bit == 0) {
                        $x--;
                        $this->bit++;
                    } else {
                        $x++;
                        $y += $this->dir;
                        $this->bit--;
                    }
    
                    if($this->dir < 0) {
                        if($y < 0) {
                            $y = 0;
                            $x -= 2;
                            $this->dir = 1;
                            if($x == 6) {
                                $x--;
                                $y = 9;
                            }
                        }
                    } else {
                        if($y == $w) {
                            $y = $w - 1;
                            $x -= 2;
                            $this->dir = -1;
                            if($x == 6) {
                                $x--;
                                $y -= 8;
                            }
                        }
                    }
                    if($x < 0 || $y < 0) return null;
    
                    $this->x = $x;
                    $this->y = $y;
    
                } while(ord($this->frame[$y][$x]) & 0x80);
                            
                return array('x'=>$x, 'y'=>$y);
            }
            
        } ;
        
        //##########################################################################    
        
        class QRencode {
        
            public $casesensitive = true;
            public $eightbit = false;
            
            public $version = 0;
            public $size = 3;
            public $margin = 4;
            
            public $structured = 0; // not supported yet
            
            public $level = QR_ECLEVEL_L;
            public $hint = QR_MODE_8;
            
            //----------------------------------------------------------------------
            public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
            {
                $enc = new QRencode();
                $enc->size = $size;
                $enc->margin = $margin;
                
                switch ($level.'') {
                    case '0':
                    case '1':
                    case '2':
                    case '3':
                            $enc->level = $level;
                        break;
                    case 'l':
                    case 'L':
                            $enc->level = QR_ECLEVEL_L;
                        break;
                    case 'm':
                    case 'M':
                            $enc->level = QR_ECLEVEL_M;
                        break;
                    case 'q':
                    case 'Q':
                            $enc->level = QR_ECLEVEL_Q;
                        break;
                    case 'h':
                    case 'H':
                            $enc->level = QR_ECLEVEL_H;
                        break;
                }
                
                return $enc;
            }
            
            //----------------------------------------------------------------------
            public function encodeRAW($intext, $outfile = false) 
            {
                $code = new QRcode();
    
                if($this->eightbit) {
                    $code->encodeString8bit($intext, $this->version, $this->level);
                } else {
                    $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
                }
                
                return $code->data;
            }
    
            //----------------------------------------------------------------------
            public function encode($intext, $outfile = false) 
            {
                $code = new QRcode();
    
                if($this->eightbit) {
                    $code->encodeString8bit($intext, $this->version, $this->level);
                } else {
                    $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
                }
                
                QRtools::markTime('after_encode');
                
                if ($outfile!== false) {
                    file_put_contents($outfile, join("
    ", QRtools::binarize($code->data)));
                } else {
                    return QRtools::binarize($code->data);
                }
            }
            
            //----------------------------------------------------------------------
            public function encodePNG($intext, $outfile = false,$saveandprint=false) 
            {
                try {
                
                    ob_start();
                    $tab = $this->encode($intext);
                    $err = ob_get_contents();
                    ob_end_clean();
                    
                    if ($err != '')
                        QRtools::log($outfile, $err);
                    
                    $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
                    
                    QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
                
                } catch (Exception $e) {
                
                    QRtools::log($outfile, $e->getMessage());
                
                }
            }
        }
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  • 原文地址:https://www.cnblogs.com/dreamhome/p/9333370.html
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