圧縮フォルダーの PHP クラス コード

复制代码代码如下:

/*
$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 ->ファイルzip();
$fp = fopen($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);
$this -> addFile($fileValue, $zipName . '/' . $file);
} else {
$this ->openFile($path.'/'.$file, $zipName . '/' . $file);
}
}
}
$zipName = $temp_zip_path;
$path = $temp_path;
closedir($handle);
}
}
関数 unix2DosTime($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['分'] = 0;
$timearray['秒'] = 0;
}
return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
($timearray['時間'] << 11) | ($timearray['分'] << 5) | ($timearray['秒'] >> 1);
}
function addFile($data, $name, $time = 0) {
$name = str_replace('\', '/', $name);
$dtime = dechex($this->unix2DosTime($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);
$c_len = strlen($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 .= パック('v', 0);
$fr .= $name;
$fr .= $zdata;
$fr .= Pack('V', $crc);
$fr .= Pack('V', $c_len);
$fr .= Pack('V', $unc_len);
$this ->データセック[] = $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 );
$this -> old_offset = $new_offset;
$cdrec .= $name;
$this -> ctrl_dir[] = $cdrec;
}
function filezip() {
$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";
}
}
?>