<html>
<head>
<title>Hello</title>
</head>
<body>
<?php
interface Food
{
function buy();
function pay($amount);
}
class Pizza implements Food
{
function buy()
{
echo 'buying food...<br/>';
}
function pay($amount)
{
echo 'Paying $' . $amount . '<br/>';
}
}
$p1 = new Pizza();
$p1->buy();
?>
</body>
</html>
<?php
/**
* Decorator pattern example.
*
* Each class is nice and independent from the others, so you don't have to ever change it again,
* (except for perhaps the price). Once it is up and running, you can just leave it alone!
*/
include_once "BusinessInterface.php";
include_once "Pizza.php";
include_once "AddOlives.php";
include_once "AddGreenPeppers.php";
if (isset($_POST['pizza']) && $_POST['pizza']) {
$cost = new Pizza();
echo "<br>" . "The pizza costs: " . $cost->buy() . "<br>";
if (isset($_POST['olives']) && $_POST['olives']) {
$cost = new AddOlives($cost);
echo "Subtotal with olives added is: " . $cost->buy() . "<br>";
}
if (isset($_POST['green_peppers']) && $_POST['green_peppers']) {
$cost = new AddGreenPeppers($cost);
echo "Subtotal with green peppers added is: " . $cost->buy() . "<br>";
}
echo "Grand Total: " . $cost->buy() . "<br>";
} else {
echo "You did not order a pizza.";
}
