I use the following script whenever I want to enable error display in php5:

ini_set('display_errors', 1);
ini_set('log_errors', 1);
ini_set('error_log', dirname(__FILE__) . '/error_log.txt');
error_reporting(E_ALL);

But on this new 11.1 install I did, it's not working. I applied all the update after the install and I installed and configured apache. The home page shows up fine when I go to it, but then it fails at one of my php pages.

I've used the script above on my other 11.1 box just fine....but this time it won't display any errors. Just a blank white page.

I even went into php.ini and enabled Display_Errors. Still nothing.

Any ideas? I must be forgetting something...