Virtual

class Bike {
    public function whatAreYou() {
        print "I'm a bike.";
    }
}

class Car extends Bike {
    public function whatAreYou() {
        print "I'm a car.";
    }
}


$car = new Car();

// So we cast the car to its super class and assign that to a new variable.
$bike = (Bike) $car;

// So what does this output?
print $bike->whatAreYou();