PHP 压缩文件夹的类代码_php实例

<?php <BR>/* <BR>$Id: PHPZip.php <BR>*/ <BR>class PHPZip { <BR>var $datasec = array(); <BR>var $ctrl_dir = array(); <BR>var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; <BR>var $old_offset = 0; <BR>function Zip($dir, $zipfilename) { <BR>if (@function_exists('gzcompress')) { <BR>@set_time_limit("0"); <BR>$this->openFile($dir,$dir); <BR>$out = $this -> filezip(); <BR>$fp = fopen($zipfilename, "w"); <BR>fwrite($fp, $out, strlen($out)); <BR>fclose($fp); <BR>} <BR>} <BR>function openFile($path, $zipName) { <BR>$temp_path = $path; <BR>$temp_zip_path = $zipName; <BR>$zipDir = $zipName; <BR>if ($handle = @opendir($path)) { <BR>while (false !== ($file = readdir($handle))) { <BR>if($file !='.' and $file !='..'){ <BR>if(ereg('\.' , $file.@basename())) { <BR>$fd = fopen($path.'/'.$file, "r"); <BR>$fileValue = @fread ($fd, 1024000); <BR>fclose ($fd); <BR>$this -> addFile($fileValue, $zipName . '/' . $file); <BR>} else { <BR>$this ->openFile($path.'/'.$file, $zipName . '/' . $file); <BR>} <BR>} <BR>} <BR>$zipName = $temp_zip_path; <BR>$path = $temp_path; <BR>closedir($handle); <BR>} <BR>} <BR>function unix2DosTime($unixtime = 0) { <BR>$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime); <BR>if ($timearray['year'] < 1980) { <BR>$timearray['year'] = 1980; <BR>$timearray['mon'] = 1; <BR>$timearray['mday'] = 1; <BR>$timearray['hours'] = 0; <BR>$timearray['minutes'] = 0; <BR>$timearray['seconds'] = 0; <BR>} <BR>return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | <BR>($timearray['hours'] << 11) | ($timearray['minutes'] <> 1); <BR>} <BR>function addFile($data, $name, $time = 0) { <BR>$name = str_replace('\\', '/', $name); <BR>$dtime = dechex($this->unix2DosTime($time)); <BR>$hexdtime = '\x' . $dtime[6] . $d<span style="color:transparent">~来1源gaodai#ma#com搞*代#码1网</span><abbr>搞代gaodaima码</abbr>time[7] <BR>. '\x' . $dtime[4] . $dtime[5] <BR>. '\x' . $dtime[2] . $dtime[3] <BR>. '\x' . $dtime[0] . $dtime[1]; <BR>eval('$hexdtime = "' . $hexdtime . '";'); <BR>$fr = "\x50\x4b\x03\x04"; <BR>$fr .= "\x14\x00"; <BR>$fr .= "\x00\x00"; <BR>$fr .= "\x08\x00"; <BR>$fr .= $hexdtime; <BR>$unc_len = strlen($data); <BR>$crc = crc32($data); <BR>$zdata = gzcompress($data); <BR>$c_len = strlen($zdata); <BR>$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); <BR>$fr .= pack('V', $crc); <BR>$fr .= pack('V', $c_len); <BR>$fr .= pack('V', $unc_len); <BR>$fr .= pack('v', strlen($name)); <BR>$fr .= pack('v', 0); <BR>$fr .= $name; <BR>$fr .= $zdata; <BR>$fr .= pack('V', $crc); <BR>$fr .= pack('V', $c_len); <BR>$fr .= pack('V', $unc_len); <BR>$this -> datasec[] = $fr; <BR>$new_offset = strlen(implode('', $this->datasec)); <BR>$cdrec = "\x50\x4b\x01\x02"; <BR>$cdrec .= "\x00\x00"; <BR>$cdrec .= "\x14\x00"; <BR>$cdrec .= "\x00\x00"; <BR>$cdrec .= "\x08\x00"; <BR>$cdrec .= $hexdtime; <BR>$cdrec .= pack('V', $crc); <BR>$cdrec .= pack('V', $c_len); <BR>$cdrec .= pack('V', $unc_len); <BR>$cdrec .= pack('v', strlen($name) ); <BR>$cdrec .= pack('v', 0 ); <BR>$cdrec .= pack('v', 0 ); <BR>$cdrec .= pack('v', 0 ); <BR>$cdrec .= pack('v', 0 ); <BR>$cdrec .= pack('V', 32 ); <BR>$cdrec .= pack('V', $this -> old_offset ); <BR>$this -> old_offset = $new_offset; <BR>$cdrec .= $name; <BR>$this -> ctrl_dir[] = $cdrec; <BR>} <BR>function filezip() { <BR>$data = implode('', $this -> datasec); <BR>$ctrldir = implode('', $this -> ctrl_dir); <BR>return <BR>$data . <BR>$ctrldir . <BR>$this -> eof_ctrl_dir . <BR>pack('v', sizeof($this -> ctrl_dir)) . <BR>pack('v', sizeof($this -> ctrl_dir)) . <BR>pack('V', strlen($ctrldir)) . <BR>pack('V', strlen($data)) . <BR>"\x00\x00"; <BR>} <BR>} <BR>?><BR>

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