壓縮檔案怎麼解壓縮 PHP 壓縮資料夾的類別程式碼

複製程式碼程式碼如下：

/*
$Id: PHPZip.php
* /
class PHPZip {
var $datasec = array();
var $ctrl_dir = array();
var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
var $old_offset = 0;
function Zip($dir, $zipfilename) {
if (@function_exists('gzcompress')) {
@set_time_limit("0");
$this->openFile($dir,$dir);
$out = $this ->;檔案壓縮（）；
$fp = fopen($zipfilename, "w");
fwrite($fp, $out, strlen($out));
fclose($fp);
}
}
function openFile($path, $zipName) {
$temp_path = $path;
$temp_zip_path = $zipName;
$zipDir = $zipName;
if ($handle = @opendir($path)) {
while (false !== ($file = readdir($handle))) {
if($file !='.' and $file !='..'){
if(ereg('.' , $file.@basename())) {
$fd = fopen($path.'/'.$file, " r”);
$fileValue = @fread($fd, 1024000);
fclose ($fd);
$這個-> addFile($fileValue, $zipName . '/' . $file) ;
} else {
$this ->openFile($path.'/'.$file, $zipName . '/' . $file);
}
}
}
$zipName = $temp_zip_path;
$temp_path;
closedir($handle);
}
}
function unix2DosTime($unixtime = 00) { $unixtime == 0) : getdate($unixtime)
if ($timearray['year'] $timearray['year'] = 1980; 🎜>$timearray['mon'] = 1;
$timearray['mday'] = 1;
$timearray['小時'] = 0
$timearray['分鐘'] = 0; ;
$timearray['秒'] = 0
}
return (($timearray['year'] - 1980) >1);
}
function addFile($data, $name, $time = 0) {
$name = str_replace('\', '/', $name);
$dtime = dechex($this->unix2DosTime($time));
$hexdtime = 'x' 。 [2] 。
eval('$hexdtime = "' . $hexdtime . '";');
$fr = "x50x4bx03x04";
$fr .= "x14x00";
$fr .= "x00x00";
$fr .= "x08x00";
$fr .= $hexdtime;
$unc_len = strlen($data);
$crc = crc32($data);
$zdata = gzcompress($data);
$c_len = strlen($zdata);
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
$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);
$這個->資料安全[] = $fr;
$new_offset = strlen(implode('', $this->datasec));
$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 );
$這個->舊偏移量 = $新偏移量；
$cdrec .= $name;
$這個-> ctrl_dir[] = $cdrec;
}
function filezip() {
$data = implode('', $this -> datasec);
$ctrldir = implode('', $this -> ctrl_dir);
回傳
$data。 v', sizeof($this -> ctrl_dir)) 。 」;
}
}
?>


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