exception.php

<?php

class Whatevs {

	public function
	__ToString() {
	/*//
	try to generate the string we need, else show a fallback.
	//*/

		try {
			$Output = $this->FailHard();
		}

		catch(Exception $Error) {
			$Output = 'It Failed Hard.';
		}

		return $Output;
	}

	protected function
	FailHard() {
		throw new Exception('diaf');
	}

}

class Wonky
extends Whatevs {

}

$Whatevs = new Wonky;
echo $Whatevs;