$user = User::findOrFail($id);In this example, we are fetching the user that matches the given `$id`. If no user is found with that `$id`, Laravel will throw an exception. This method can be useful when you need to ensure that a record exists before performing any actions on it. It can also be used in cases where a non-existent record is a critical error. The `findOrFail` method is a part of the Laravel Eloquent ORM. To use it, you need to have Laravel and Eloquent ORM installed and configured.