gezipu php decompression example reference for gzip files or strings

In fact, php is very simple to decompress gzip. You can just use the built-in gzdecode function. However, unfortunately, I configured it for a long time and could not support the gzdecode function, so I had to work around it:

Copy the code The code is as follows:

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] ; $extralen;                                                                                                                                                                                                                                                                                               = strpos($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;
}
}


The calling method is very simple:



Copy the code

The code is as follows :

$f=@file_get_contents("http://www.jb51.net"); echo gzdecode($f);

The above introduces the gezipu php reference for gzip file or string decompression examples, including the content of gezipu. I hope it will be helpful to friends who are interested in PHP tutorials.