Decomprimere stringa

[Ldn]

Ho provato una cosa del genere ma non va... uff ci sto perdendo la testa con sta compressione XD

if (!function_exists('el_zip_gzDecode')) {
    function el_zip_gzDecode ($data, &$filename = null, &$comment = null) {
        $gzMagic = sprintf("%X%X",ord(substr($data, 1, 1)),ord(substr($data, 0, 1)));
        if($gzMagic != "8B1F"){
            $unpacked = @gzinflate($data);
            return $unpacked;
        }
        $flags = ord(substr($data, 3, 1));
        $headerlen = 10;
        if ($flags & 4) {
            $extralen = unpack('v' ,substr($data, 10, 2));
            $extralen = $extralen[1];
            $headerlen += 2 + $extralen;
        }
        if ($flags & 8){ // Filename
            $new_headerlen = strpos($data, chr(0), $headerlen) + 1;
            $gzfname = substr($data, $headerlen, $new_headerlen - $headerlen - 1);
            $headerlen = $new_headerlen;
            if(isset($filename)) $filename = $gzfname;
        }
        if ($flags & 16){ // Comment
            $new_headerlen = strpos($data, chr(0), $headerlen) + 1;
            $gzcomment = substr($data, $headerlen, $new_headerlen - $headerlen - 1);
            $headerlen = $new_headerlen;
            if(isset($comment)) $comment = $gzcomment;
        }
        if ($flags & 2) // CRC at end of header
            $headerlen += 2;
        $old_size = strlen($data);
        $new_size = $old_size - $headerlen - 8;
        $packed = substr($data, $headerlen, $new_size);
        $unpacked = gzinflate($packed);
        return $unpacked;
    }
}

while (!feof ($socket)) {
$part .= fgets ($socket);

}
$a = el_zip_gzDecode($part);
echo $a;