{ // Call the Pet::play() method: parent::play(); echo "<p>{$this->name} is fetching.</p>"; } } // End of Dog class. # ***** END OF CLASSES ***** # // Create a dog: $dog = new Dog('Satchel'); // Create a cat: $cat = new Cat('Bucky'); // Create an unknown type of pet: $pet = new Pet('Rob'); // Feed them: $dog->eat(); $cat->eat(); $pet->eat(); // Nap time: $dog->sleep(); $cat->sleep(); $pet->sleep(); // Have them play: $dog->play(); $cat->play(); $pet->play(); // Delete the objects: unset($dog, $cat, $pet); ?> </body> </html>