gzdecode
(PHP 5 >= 5.4.0, PHP 7)
gzdecode — Decodes a gzip compressed string
Description
gzdecode ( string $data [, int $max_length = 0 ] ) : string|false
 This function returns a decoded version of the input data. 
Parameters
-  data
-  The data to decode, encoded by gzencode(). 
-  max_length
-  The maximum length of data to decode. 
Return Values
 The decoded string, or false if an error occurred. 
See Also
- gzencode() - Create a gzip compressed string
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    https://www.php.net/manual/en/function.gzdecode.php