以下為引用的內容：

if (!function_exists('gzdecode')) {
function gzdecode ($data) {
$flags = ord(substr($data, 3, 1));
$headerlen = 10;
$extralen = 0;
$filenamelen = 0;
if ($flags & 4) {
$extralen = unpack('v' ,substr($data, 10, 2));
$extralen = $extralen[1];
$headerlen += 2 + $extralen;
}
if ($flags & 8) // filename
$headerlen = strpos($data, chr(0), $headerlen) + 1;
if ($flags & 16) // comment
$headerlen = strpos($data, chr(0), $headerlen) + 1;
if ($flags & 2) // crc at end of file
$headerlen += 2;
$unpacked = @gzinflate(substr($data, $headerlen));
if ($unpacked === false)
$unpacked = $data;
return $unpacked;
}
}

以下為引用的內容：

$[email protected]_get_contents("http://www.itlearner.com");
echo gzdecode($f);