PHP doesn't show any kind of errors [duplicate]

Answer 1

Enable the following settings as shown below

display_errors

Default Value: On

Development Value: On

Production Value: Off

error_reporting

Default Value: E_ALL & ~E_NOTICE

Development Value: E_ALL | E_STRICT

Production Value: E_ALL & ~E_DEPRECATED

Restart apache server

Answer 2

Is the display_errors parameter listed more than once in your php.ini file? If its defined more than once, the second instance of it will override the first.

Answer 3

Ubuntu keeps separate copies of the php.ini file for each type of PHP installation.

I'm not familiar with the dotdeb release, but I'd guess it'd be in /etc/php5/apache2/php.ini

Edit: Since this is apparently not the case, try restarting Apache. PHP won't pick up changed settings until you do.