How to find php settings for debugging?

Question

PHP

Good afternoon
Compiled from php 5.3 sources for the old site. Now it is processed by Apache through the wrapper, everything is fine.
When I include php settings for this from php.ini-development, which was with the sources, the site stops at the first error. It is worth removing this php.ini - the site works. With an error, but it works.
What I want: to find out what setting stops me from adding the xdebug extension and debugging with it.
Is there any way to save default php settings in php.ini? Since with such settings the site at least somehow works.

Answer 1

Enable error logging in your php.ini and read these logs.

Answer 2

Viant did not consider correcting the error?