我有这么一个压缩文件夹的类,求更快的压缩方法
<br /><?php<br /><br />class PHPZip<br />{<br /><br /> var $datasec = array();<br /> var $ctrl_dir = array();<br /> var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";<br /> var $old_offset = 0;<br /> <br /> function Zip($dir, $zipfilename)<br /> {<br /> if(@function_exists('gzcompress'))<br /> {<br /> @set_time_limit("0");<br /> $this->openFile($dir, $dir);<br /> $out = $this->filezip();<br /> $fp = fopen($zipfilename, "w");<br /> $fwrite = fwrite($fp, $out, strlen($out));<br /> fclose($fp);<br /> if($fwrite == true)<br /> {<br /> return true;<br /> }<br /> }<br /> return false;<br /> }<br /><br /> function openFile($path, $zipName)<br /> {<br /> $temp_path = $path;<br /> $temp_zip_path = $zipName;<br /> $zipDir = $zipName;<br /> <br /> if($handle = @opendir($path))<br /> {<br /> while(($file = readdir($handle))!==false)<br /> {<br /> $sub_dir = $path . DIRECTORY_SEPARATOR . $file; //构建子目录路径<br /> if($file == '.' || $file == '..') {<br /> continue;<br /> }else if(is_dir($sub_dir)) { //如果是目录,进行递归<br /> $this->openFile($path . '/' . $file, $zipName . '/' . $file);<br /> }<br /> else{<br /> $fd = fopen($path . '/' . $file, "r");<br /> $fileValue = @fread($fd, 1024000);<br /> if($fd)<br /> fclose($fd);<br /> $this->addFile($fileValue, $zipName . '/' . $file);<br /> }<br /> }<br /> $zipName = $temp_zip_path;<br /> $path = $temp_path;<br /> closedir($handle);<br /> }<br /> }<br /><br /> function unix2DosTime($unixtime = 0)<br /> {<br /> $timearray = ($unixtime==0) ? getdate() : getdate($unixtime);<br /> if($timearray['year']<1980)<br /> {<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']<<5)|($timearray['seconds']>>1);<br /> }<br /><br /> function addFile($data, $name, $time = 0)<br /> {<br /> $name = str_replace('\\', '/', $name);<br /> $dtime = dechex($this->unix2DosTime($time));<br /> $hexdtime = '\x' . $dtime[6] . $dtime[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 /><br /> function filezip()<br /> {<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 /><br />//我有个文件夹,大概30M,600个文件,打包时间超过半个小时候以上,谁有更好更快的打包方法啊,不胜感谢了。<br /><br />