error_append_string and error_log

Hi! I'm trying to append some extra info to my php errors. It works well when I'm displaying errors on screen, but it doesn't work to log the extra info into an error file (log_errors and error_log). I mean, if I use this: <?php ini_set('display_errors', 1); ini_set('log_errors', 1); ini_set('error_log', './ERRORS'); ini_set('error_append_string', " -- SomeStuff!"); require 'test.php'; // this file contains syntax errors... When I issue this using a web browser, I get a syntax error shown in the browser and it contains the "SomeStuff" text, but in the ERRORS file I just get the php error without the "SomeStuff" text... Is there any way to get this working? Thanks! Regards, JaviRuiz.