public function attack($person)
{
$person->health - 10;
}
}
$frank = new Person('Frank');
echo $frank->speak();
echo "<br><br><br><br><br><br>";
class Vehicle
{
public $fuelAmount;
public $mpg;
public function __construct($fuelAmount, $mpg)
{
$this->fuelAmount = $fuelAmount;
$this->mpg = $mpg;
}
public function honk()
{
return "honk honk I have " . $this->fuelAmount . " gal of gas.";
}
public function drive($distance)
{
$this->fuelAmount -= $distance / $this->mpg;
}
}
$mustang = new Vehicle(100, 50);
echo $mustang->honk();
$mustang->drive(500);
echo $mustang->honk();
echo "<br><br><br><br><br><br>";
echo "And I know how to dance <br/>";
}
?>
<h2>Inheritance</h2>
<?php
$square = new Square();
if (property_exists($square, "hasSides")) {
echo "I have sides";
}
?>
<h2>Overriding Parent Methods</h2>
<?php
$vehicle = new Vehicle();
echo $vehicle->honk() . "<br/>";
$bicycle = new Bicycle();
echo $bicycle->honk() . "<br/>";
echo $bicycle->drive() . "<br/>";
?>
<h2>Using <code>const</code></h2>
<?php
// :: => scope resolution operator
if (Immortal::alive) {
echo "I live forever!";
}
?>
<h2><code>static</code> Keyword</h2>
<?php
echo Person::greet() . "<br/>";
