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PHP多个图片压缩成ZIP的方法

2024-05-05 00:04:42
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 本文实例为大家分享了PHP多个图片压缩成ZIP的具体代码,供大家参考,具体内容如下

可将多个文件压缩成一个zip压缩包,文件名可自定义(兼容中文文件名)

<?phpheader("Content-type: text/html; charset=utf-8"); class zipfile {  var $datasec = array ();  var $ctrl_dir = array ();  var $eof_ctrl_dir = "/x50/x4b/x05/x06/x00/x00/x00/x00";  var $old_offset = 0;    function unix2_dostime($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) | ($timearray ['seconds'] >> 1);  }  function add_file($data, $name, $time = 0){     $name = urldecode($name);       //判断文件名中是否含有中文 if (preg_match("/[/x7f-/xff]/", $name)) {   $name = $this->iconv_to_utf8($name,'GB2312'); }     $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 = "/x50/x4b/x03/x04";    $fr .= "/x14/x00";    $fr .= "/x00/x00";    $fr .= "/x08/x00";    $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 = "/x50/x4b/x01/x02";    $cdrec .= "/x00/x00";    $cdrec .= "/x14/x00";    $cdrec .= "/x00/x00";    $cdrec .= "/x08/x00";    $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[] = $cdrec;  }  function add_path($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));      }    }  }  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($data)) . "/x00/x00";  }    function add_files($files){    foreach($files as $file){           if (is_file($file)){        $data = implode("", file($file));        $this->add_file($data, $file);      }    }  }  function output($file){    $fp = fopen($file, "w");    fwrite($fp, $this->file ());    fclose($fp);  } /** * 转码为UTF-8 * @param $keyword 要转码的字符串 */ function iconv_to_utf8($keyword, $to='UTF-8'){ $encode = mb_detect_encoding($keyword, array('ASCII','UTF-8','GBK','GB2312')); if($encode != $to){  $keyword = iconv($encode, $to, $keyword); } return $keyword; }}$dfile = tempnam('/tmp', 'tmp');//产生一个临时文件,用于缓存下载文件$zip = new zipfile(); //----------------------$filename = 'image.zip'; //下载的默认文件名$filename = $filename;$host = 'http://test.love11.com';//$dir_name = $host.'/images/point_qrcode/';$image = array(  array('image_src' => 'test2.jpg', 'image_name' => '中文1.jpg'),  array('image_src' => 'weixin.jpg', 'image_name' => '中文2.jpg'),);foreach($image as $v){   $zip->add_file(file_get_contents($dir_name.urlencode($v['image_src'])), $v['image_name']);  // 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();?>

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持VeVb武林网。


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