How can users troubleshoot PHP configuration errors that lead to pages not loading after making changes to php.ini?

To troubleshoot PHP configuration errors that lead to pages not loading after making changes to php.ini, users can check the error logs for specific error messages, ensure that the php.ini file is correctly configured with the right settings, and restart the web server to apply the changes.

error_reporting(E_ALL);
ini_set('display_errors', 1);