Description:
------------
in documentation described error_log returns integer but testet on linux php 5.x it does return true on success.
Maybe it's a Bug

With best regards

Sven Ullmann

Reproduce code:
---------------
php -r "var_dump( error_log( 'test' ) );";

// returns: true

Expected result:
----------------
integer as it is described

Actual result:
--------------
boolean