(PHP 4 >= 4.0.1, PHP 5, PHP 7, PHP 8)
gzuncompress — Uncompress a compressed string
$data, int $max_length = 0): string|falseThis function uncompress a compressed string.
dataThe data compressed by gzcompress().
max_lengthThe maximum length of data to decode.
   The original uncompressed data or false on error.
  
   The function will return an error if the uncompressed data is more than
   32768 times the length of the compressed input data 
   or more than the optional parameter max_length.
  
Example #1 gzuncompress() example
<?php
$compressed   = gzcompress('Compress me', 9);
$uncompressed = gzuncompress($compressed);
echo $uncompressed;
?>