Turn php error reporting off in xampp?

Inside your php.ini make sure that you have display_errors to Off. From what I understand if you set display_errors to Off then the error_reporting directive doesn't need to change.

Example:

error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR
display_errors = Off

in php.ini, do the following change,

display_errors = Off

This is very old now, but in case someone comes across this there's a XAMMP issue with version 5.6.3. I had the same issue with error display set to 'off' and it was still showing up as on in phpinfo()

For some reason, they added the error reporting in php.ini twice. display_errors shows on line 99 of php.ini, and then again on line 552.

So if you scroll down and disable the first one, the second one is still set to 'on' and overrides the first one leaving error reporting active.

I'm sure this will be fixed with future versions of XAMMP, but wanted to add this here for anyone that comes here looking for an answer to this problem.