PHP: Show all error messages for debugging

Yes, with using the function error_reporting() it is possible to manage which errors should be displayed.

To ensure that all errors are displayed, you can pass E_ALL:

error_reporting(E_ALL);

In order to turn the error reporting off and to ensure that errors will not be displayed 0 as a parameter:

error_reporting(0);

However, it is also possible to only show a specific connection off individual errors. You can achieve this with passing the appropriate constants:

error_reporting(E_WARNING | E_PARSE);

In this case, we only want to show warnings and paser errors. You can find a list of all constants that are available here.

By the way, instead of calling error_reporting(E_ALL) you can also use ini_set('error_reporting', E_ALL).
2016-02-24 at 11:41