By visiting php.info in a web browser I have confirmed the location of my php.ini file as /usr/local/php5/lib/php.ini. I open that file and edit the line:
; - display_errors = Off
and change it to
display_errors = On
I then retstart Appache and visit php.info which still reports display_errors = Off. What else can I do?
Should be simple: create a script with the following code:
<?php
phpinfo();
?>
Then open that script in your browser. The generated output does also provide information about the path of the loaded php.ini.