PHP toString-Methode - Bsp.: Ausgaben ohne Instanzvariable

class User{

	private $name;
	private $nachname;

	public function __construct( $name , $nachname ){
		$this -> name = ucfirst( $name );
		$this -> nachname = ucfirst( $nachname );
	}

	public function __toString(){
		return "{$this -> name} {$this -> nachname}";
	}
}

echo new User( 'ralf' , 'singer' );