qw12er

function unzip($FileName){
$path = dirname($FileName).'/';
$Time = filemtime($FileName);
$Size = filesize($FileName);

$oF = fopen($FileName, 'rb');
$vZ = fread($oF, $Size);
fclose($oF);

$aE = explode("\x50\x4b\x05\x06", $vZ);
$aP = unpack('x16/v1CL', $aE[1]);
$Comment = substr($aE[1], 18, $aP['CL']);


$Comment = strtr($Comment, array("\r\n" => "\n",
"\r" => "\n"));
$aE = explode("\x50\x4b\x01\x02", $vZ);
$aE = explode("\x50\x4b\x03\x04", $aE[0]);
array_shift($aE);

foreach ($aE as $vZ) {
$aI = array();
$aI['E'] = 0;
$aI['EM'] = '';

$aP = unpack('v1VN/v1GPF/v1CM/v1FT/v1FD/V1CRC/V1CS/V1UCS/v1FNL', $vZ);
$bE = ($aP['GPF'] && 0x0001) ? TRUE : FALSE;
$nF = $aP['FNL'];

if ($aP['GPF'] & 0x0008) {
$aP1 = unpack('V1CRC/V1CS/V1UCS', substr($vZ, -12));

$aP['CRC'] = $aP1['CRC'];
$aP['CS'] = $aP1['CS'];
$aP['UCS'] = $aP1['UCS'];

$vZ = substr($vZ, 0, -12);
}

$aI['N'] = substr($vZ, 26, $nF);

if (substr($aI['N'], -1) == '/')
continue;

$aI['P'] = dirname($aI['N']);
$aI['P'] = $aI['P'] == '.' ? '' : $aI['P'];
$aI['N'] = basename($aI['N']);

$vZ = substr($vZ, 26 + $nF);

if (strlen($vZ) != $aP['CS']) {
$aI['E'] = 1;
$aI['EM'] = 'Compressed size is not equal with the value in header information.';
} else {
if ($bE) {
$aI['E'] = 5;
$aI['EM'] = 'File is encryption is not supported from this class.';
} else {
switch($aP['CM']) {
case 0:
break;
case 8:
$vZ = gzinflate($vZ);
break;
case 12:
if (! extension_loaded('bz2')) {
if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN')
@dl('php_bz2.dll');
else
@dl('bz2.so');

}

if (extension_loaded('bz2'))
$vZ = bzdecompress($vZ);
else {
$aI['E'] = 7;
$aI['EM'] = "PHP BZIP2 extension not available.";
}
break;

default:
$aI['E'] = 6;
$aI['EM'] = "De-/Compression method {$aP['CM']} is not supported.";
}

if (! $aI['E']) {
if ($vZ === FALSE) {
$aI['E'] = 2;
$aI['EM'] = 'Decompression of data failed.';
} else {
if (strlen($vZ) != $aP['UCS']) {
$aI['E'] = 3;
$aI['EM'] = 'Uncompressed size is not equal with the value in header information.';
} else {
if (crc32($vZ) != $aP['CRC']) {
$aI['E'] = 4;
$aI['EM'] = 'CRC32 checksum is not equal with the value in header information.';
}
}
}
}
}
}

$aI['D'] = $vZ;

// DOS to UNIX timestamp
$aI['T'] = mktime(($aP['FT'] & 0xf800) >> 11,
($aP['FT'] & 0x07e0) >> 5,
($aP['FT'] & 0x001f) << 1,
($aP['FD'] & 0x01e0) >> 5,
($aP['FD'] & 0x001f),
(($aP['FD'] & 0xfe00) >> 9) + 1980);

if ($aI['P'] != '') {
mkdir($path.$aI['P']);
$f = fopen($path.$aI['P'].'/'.$aI['N'], 'w+');
} else
$f = fopen($path.$aI['N'], 'w+');
fwrite($f, $aI['D']);
fclose($f);
}

}

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