//---------------------OBJECT ORIENTED PROGRAMMING--------------------//
class Animal {
    var $name;
    function __construct($name) {
        $this->name = $name;
    }
}

class Dog extends Animal {
    function speak() {
        return "Woof, woof!";
    }
}

class Cat extends Animal {
    function speak() {
        return "Meow...";
    }
}

$animals = array(new Dog('Skip'), new Cat('Snowball'));

foreach($animals as $animal) {
    print $animal->name . " says: " . $animal->speak() . '<br>';
}


//---------------------PROCEDURAL PROGRAMMING--------------------//
function Animal($name,$speak)
	{
		return $name . " says: " . $speak;;
	}

$animals2 = array('Skip', 'Snowball');
$speak = array('Woof, woof!','Meow...');
for ($n=0;$n<sizeof($animals2);$n++){
    print Animal($animals2[$n],$speak[$n]) . '<br>';
}

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Question 1: Which code is shorter?
Answer: Procedural

Question 2: Which code is easier to read?
Answer: Procedural

Question 3: How many lines would you need to edit for each to add a pig animal?
Answer (OOP): Add entire new class under Animal (4 lines), add 2 elements to $animals array with new class declarations.
Answer (Procedural): Add 1 new element to $animals2 and $speak arrays.  (Oh no, GASP! I used TWO arrays, I'm misusing memory!  Except we're not living in 1982 anymore...)

Question 4: So why use OOP?
Answer: To stroke your ego.