Hey i know there are a few posts regarding this topic and i have scoured them all!
I cannot not enable the display_errors setting in php no matter what i do!!!
Per display_errors:
Although
display_errorsmay be set at runtime (with ini_set()), it won't have any effect if the script has fatal errors. This is because the desired runtime action does not get executed.
so if you are dealing with problem not displaying errors and you may have syntax errors in your scripts, setting displaying errors by ini_set will not help, this requires changes in php.ini
sudo sed -i 's/display_errors = Off/display_errors = On/' /etc/php5/apache2/php.ini