Where are php log files?

Question

I'm getting only apache access information from logs. Is there any way to activate debug logs in order to get information from failing plugins?

Being specific I'm trying to understand why the ldap plugin is failing ... but I don't know how to find some traces ...

Thank you in advance

Comments

Error information should appear in the error log configured for your site. Check the ErrorLog directive in your Apache site config and your php.ini for the log file location. Check the default Apache error log if no log is configured. You can also edit the plugin to log additional information (see https://systemrequest.net/index.php/23/).