How can one effectively debug PHP scripts when no error output is being displayed?

If no error output is being displayed when trying to debug PHP scripts, one effective way to troubleshoot the issue is to enable error reporting in the PHP configuration file. This can be done by setting the `display_errors` directive to `On` and `error_reporting` to `E_ALL`. This will ensure that any errors or warnings are displayed on the screen, helping to identify and fix any issues in the code.

// Enable error reporting
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);