二维码生成器

public function getImgUrl(Request $request)

{

$file_name = $request->input('title');

if (empty($file_name )) {

self::ShowError(ErrorDefine::S_SYSTEM_ERROR,'缺少标题');

return;

}

$url = $request->input('url');

if (empty($url)) {

self::ShowError(ErrorDefine::S_SYSTEM_ERROR,'缺少url');

return;

}

$url = urldecode($url);

$file_name = $file_name . ".png";

//$PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'qr_code_temp'.DIRECTORY_SEPARATOR;

$PNG_TEMP_DIR = $_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'qr_code_img'.DIRECTORY_SEPARATOR;

//html PNG location prefix

$PNG_WEB_DIR = 'qr_code_img/';

include_once ('../app/Http/SDK/phpqrcode/qrlib.php');

//ofcourse we need rights to create temp dir

if (!file_exists($PNG_TEMP_DIR))

mkdir($PNG_TEMP_DIR);

 

$filename = $PNG_TEMP_DIR.$file_name;

$replace = $request->input("replace");

if (file_exists($PNG_TEMP_DIR .$file_name) && empty($replace)) {

$url ="http://".$_SERVER['HTTP_HOST'] ."\". $PNG_WEB_DIR.basename($filename);

$url = str_replace("\", "/", $url);

$result = array('url'=>$url);

self::ShowMessage($result,0,'请求成功');

}

 

//processing form input

//remember to sanitize user input in real-life solution !!!

$errorCorrectionLevel = 'L';

if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))

$errorCorrectionLevel = $_REQUEST['level'];

 

$matrixPointSize = 4;

if (isset($_REQUEST['size']))

$matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);

 

 

if (isset($_REQUEST['data'])) {

 

//it's very important!

if (trim($_REQUEST['data']) == '')

die('data cannot be empty! <a href="?">back</a>');

 

// user data

$filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';

QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);

 

} else {

 

//default data

//echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';

QRcode::png($url, $filename, $errorCorrectionLevel, $matrixPointSize, 2);

 

}

 

//display generated file

$url ="http://".$_SERVER['HTTP_HOST'] ."\". $PNG_WEB_DIR.basename($filename);

$url = str_replace("\", "/", $url);

//display generated file

$result = array('url'=>$url);

self::ShowMessage($result,0,'请求成功');

}