Description:
------------
---
From manual page: http://www.php.net/function.preg-match#refsect1-function.preg-
match-description
---
according to the documentation, preg_match returns a value of int, although it 
actually returns an array.

Test script:
---------------
var_dump(preg_match('/[0-9]/','5'));

Expected result:
----------------
Please update documentation