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<?php /** * 图片打包下载 */ namespace appcommonextend; class Imagedown { var $datasec = array (); var $ctrl_dir = array (); var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00"; var $old_offset = 0; public function unix2_dostime($unixtime = 0){ $timearray = ($unixtime == 0) ? getdate () : getdate($unixtime); if ($timearray ['year'] < 1980){ $timearray ['year'] = 1980; $timearray ['mon'] = 1; $timearray ['mday'] = 1; $timearray ['hours'] = 0; $timearray ['minutes'] = 0; $timearray ['seconds'] = 0; } return (($timearray ['year'] - 1980) << 25) | ($timearray ['mon'] << 21) | ($timearray ['mday'] << 16) | ($timearray ['hours'] << 11) | ($timearray ['minutes'] << 5) | ($timearray ['seconds'] >> 1); } public function add_file($data, $name, $time = 0){ $name = str_replace('\', '/', $name); $dtime = dechex($this->unix2_dostime($time)); $hexdtime = 'x' . $dtime [6] . $dtime [7] . 'x' . $dtime [4] . $dtime [5] . 'x' . $dtime [2] . $dtime [3] . 'x' . $dtime [0] . $dtime [1]; eval('$hexdtime = "' . $hexdtime . '";'); $fr = "x50x4bx03x04"; $fr .= "x14x00"; $fr .= "x00x00"; $fr .= "x08x00"; $fr .= $hexdtime; $unc_len = strlen($data); $crc = crc32($data); $zdata = gzcompress($data); $zdata = substr(substr($zdata, 0, strlen($zdata)- 4), 2); $c_len = strlen($zdata); $fr .= pack('V', $crc); $fr .= pack('V', $c_len); $fr .= pack('V', $unc_len); $fr .= pack('v', strlen($name)); $fr .= pack('v', 0); $fr .= $name; $fr .= $zdata; $fr .= pack('V', $crc); $fr .= pack('V', $c_len); $fr .= pack('V', $unc_len); $this->datasec [] = $fr; $cdrec = "x50x4bx01x02"; $cdrec .= "x00x00"; $cdrec .= "x14x00"; $cdrec .= "x00x00"; $cdrec .= "x08x00"; $cdrec .= $hexdtime; $cdrec .= pack('V', $crc); $cdrec .= pack('V', $c_len); $cdrec .= pack('V', $unc_len); $cdrec .= pack('v', strlen($name)); $cdrec .= pack('v', 0); $cdrec .= pack('v', 0); $cdrec .= pack('v', 0); $cdrec .= pack('v', 0); $cdrec .= pack('V', 32); $cdrec .= pack('V', $this->old_offset); $this->old_offset += strlen($fr); $cdrec .= $name; $this->ctrl_dir[] = $cdrec; } public function add_path($path, $l = 0){ $d = @opendir($path); $l = $l > 0 ? $l : strlen($path) + 1; while($v = @readdir($d)){ if($v == '.' || $v == '..'){ continue; } $v = $path . '/' . $v; if(is_dir($v)){ $this->add_path($v, $l); } else { $this->add_file(file_get_contents($v), substr($v, $l)); } } } public function file(){ $data = implode('', $this->datasec); $ctrldir = implode('', $this->ctrl_dir); return $data . $ctrldir . $this->eof_ctrl_dir . pack('v', sizeof($this->ctrl_dir)) . pack('v', sizeof($this->ctrl_dir)) . pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "x00x00"; } public function add_files($files){ foreach($files as $file){ if (is_file($file)){ $data = implode("", file($file)); $this->add_file($data, $file); } } } public function output($file){ $fp = fopen($file, "w"); fwrite($fp, $this->file ()); fclose($fp); } } //以上是类文件 自己封装成一个类 //打包下载实例操作过程 $dfile = tempnam('/tmp', 'tmp');//产生一个临时文件,用于缓存下载文件 $zip = new Imagedown(); $image = array( 'https://i.loli.net/2018/05/31/5b0f51c4715a7.jpg', 'https://i.loli.net/2018/05/31/5b0f51e0b5f01.jpg' ); //---------------------- $filename = 'image.zip'; //下载的默认文件名 foreach($image as $v){ $zip->add_file(file_get_contents($v), basename($v)); // 添加打包的图片,第一个参数是图片内容,第二个参数是压缩包里面的显示的名称, 可包含路径 // 或是想打包整个目录 用 $zip->add_path($image_path); } //---------------------- $zip->output($dfile); // 下载文件 ob_clean(); header('Pragma: public'); header('Last-Modified:'.gmdate('D, d M Y H:i:s') . 'GMT'); header('Cache-Control:no-store, no-cache, must-revalidate'); header('Cache-Control:pre-check=0, post-check=0, max-age=0'); header('Content-Transfer-Encoding:binary'); header('Content-Encoding:none'); header('Content-type:multipart/form-data'); header('Content-Disposition:attachment; filename="'.$filename.'"'); //设置下载的默认文件名 header('Content-length:'. filesize($dfile)); $fp = fopen($dfile, 'r'); while(connection_status() == 0 && $buf = @fread($fp, 8192)){ echo $buf; } fclose($fp); @unlink($dfile); @flush(); @ob_flush(); exit(); //打包下载实例操作过程
- <?php
- /**
- * 图片打包下载
- */
- namespace appcommonextend;
- class Imagedown {
- var $datasec = array ();
- var $ctrl_dir = array ();
- var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
- var $old_offset = 0;
- public function unix2_dostime($unixtime = 0){
- $timearray = ($unixtime == 0) ? getdate () : getdate($unixtime);
- if ($timearray ['year'] < 1980){
- $timearray ['year'] = 1980;
- $timearray ['mon'] = 1;
- $timearray ['mday'] = 1;
- $timearray ['hours'] = 0;
- $timearray ['minutes'] = 0;
- $timearray ['seconds'] = 0;
- }
- return (($timearray ['year'] - 1980) << 25) | ($timearray ['mon'] << 21) | ($timearray ['mday'] << 16) | ($timearray ['hours'] << 11) | ($timearray ['minutes'] << 5) | ($timearray ['seconds'] >> 1);
- }
- public function add_file($data, $name, $time = 0){
- $name = str_replace('\', '/', $name);
- $dtime = dechex($this->unix2_dostime($time));
- $hexdtime = 'x' . $dtime [6] . $dtime [7] . 'x' . $dtime [4] . $dtime [5] . 'x' . $dtime [2] . $dtime [3] . 'x' . $dtime [0] . $dtime [1];
- eval('$hexdtime = "' . $hexdtime . '";');
- $fr = "x50x4bx03x04";
- $fr .= "x14x00";
- $fr .= "x00x00";
- $fr .= "x08x00";
- $fr .= $hexdtime;
- $unc_len = strlen($data);
- $crc = crc32($data);
- $zdata = gzcompress($data);
- $zdata = substr(substr($zdata, 0, strlen($zdata)- 4), 2);
- $c_len = strlen($zdata);
- $fr .= pack('V', $crc);
- $fr .= pack('V', $c_len);
- $fr .= pack('V', $unc_len);
- $fr .= pack('v', strlen($name));
- $fr .= pack('v', 0);
- $fr .= $name;
- $fr .= $zdata;
- $fr .= pack('V', $crc);
- $fr .= pack('V', $c_len);
- $fr .= pack('V', $unc_len);
- $this->datasec [] = $fr;
- $cdrec = "x50x4bx01x02";
- $cdrec .= "x00x00";
- $cdrec .= "x14x00";
- $cdrec .= "x00x00";
- $cdrec .= "x08x00";
- $cdrec .= $hexdtime;
- $cdrec .= pack('V', $crc);
- $cdrec .= pack('V', $c_len);
- $cdrec .= pack('V', $unc_len);
- $cdrec .= pack('v', strlen($name));
- $cdrec .= pack('v', 0);
- $cdrec .= pack('v', 0);
- $cdrec .= pack('v', 0);
- $cdrec .= pack('v', 0);
- $cdrec .= pack('V', 32);
- $cdrec .= pack('V', $this->old_offset);
- $this->old_offset += strlen($fr);
- $cdrec .= $name;
- $this->ctrl_dir[] = $cdrec;
- }
- public function add_path($path, $l = 0){
- $d = @opendir($path);
- $l = $l > 0 ? $l : strlen($path) + 1;
- while($v = @readdir($d)){
- if($v == '.' || $v == '..'){
- continue;
- }
- $v = $path . '/' . $v;
- if(is_dir($v)){
- $this->add_path($v, $l);
- } else {
- $this->add_file(file_get_contents($v), substr($v, $l));
- }
- }
- }
- public function file(){
- $data = implode('', $this->datasec);
- $ctrldir = implode('', $this->ctrl_dir);
- return $data . $ctrldir . $this->eof_ctrl_dir . pack('v', sizeof($this->ctrl_dir)) . pack('v', sizeof($this->ctrl_dir)) . pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "x00x00";
- }
- public function add_files($files){
- foreach($files as $file){
- if (is_file($file)){
- $data = implode("", file($file));
- $this->add_file($data, $file);
- }
- }
- }
- public function output($file){
- $fp = fopen($file, "w");
- fwrite($fp, $this->file ());
- fclose($fp);
- }
- }
- //以上是类文件 自己封装成一个类
- //打包下载实例操作过程
- $dfile = tempnam('/tmp', 'tmp');//产生一个临时文件,用于缓存下载文件
- $zip = new Imagedown();
- $image = array(
- 'https://i.loli.net/2018/05/31/5b0f51c4715a7.jpg',
- 'https://i.loli.net/2018/05/31/5b0f51e0b5f01.jpg'
- );
- //----------------------
- $filename = 'image.zip'; //下载的默认文件名
- foreach($image as $v){
- $zip->add_file(file_get_contents($v), basename($v));
- // 添加打包的图片,第一个参数是图片内容,第二个参数是压缩包里面的显示的名称, 可包含路径
- // 或是想打包整个目录 用 $zip->add_path($image_path);
- }
- //----------------------
- $zip->output($dfile);
- // 下载文件
- ob_clean();
- header('Pragma: public');
- header('Last-Modified:'.gmdate('D, d M Y H:i:s') . 'GMT');
- header('Cache-Control:no-store, no-cache, must-revalidate');
- header('Cache-Control:pre-check=0, post-check=0, max-age=0');
- header('Content-Transfer-Encoding:binary');
- header('Content-Encoding:none');
- header('Content-type:multipart/form-data');
- header('Content-Disposition:attachment; filename="'.$filename.'"'); //设置下载的默认文件名
- header('Content-length:'. filesize($dfile));
- $fp = fopen($dfile, 'r');
- while(connection_status() == 0 && $buf = @fread($fp, 8192)){
- echo $buf;
- }
- fclose($fp);
- @unlink($dfile);
- @flush();
- @ob_flush();
- exit();
- //打包下载实例操作过程