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php-object-oriented/index.php

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<html>
<head>
<title>Class and Object Methods</title>
</head>
<body>
<p>
<?php
class Person {
public $isAlive = true;
function __construct($name) {
$this->name = $name;
}
public function dance() {
return "I'm dancing!";
}
}
$me = new Person("Shane");
if (is_a($me, "Person")) {
echo "I'm a person, ";
}
if (property_exists($me, "name")) {
echo "I have a name, ";
}
if (method_exists($me, "dance")) {
echo "and I know how to dance!";
}
?>
</p>
<p>
<?php
class Shape {
public $hasSides = true;
}
class Square extends Shape {
}
$square = new Square();
// Add your code below!
if (property_exists($square, "hasSides" )) {
echo "I have sides!";
}
?>
</p>
<p>
<?php
class Vehicle {
final public function honk() {
return "I'm driving here!";
}
}
// Add your code below!
class Bicycle extends Vehicle {
public function honk() {
return "Beep Beep!";
}
}
$bicycle = new Bicycle();
$bicycle->honk();
echo "Beep Beep!";
?>
</p>
<p>
<?php
class Person {
}
class Ninja extends Person {
// Add your code here...
const stealth = 'MAXIMUM';
}
// ...and here!
if (Ninja::stealth) {
echo "MAXIMUM";
}
?>
</p>
<p>
<?php
class King {
// Modify the code on line 10...
public static function proclaim() {
echo "A kingly proclamation!";
}
}
// ...and call the method below!
King::proclaim();
?>
</p>
<p>
<?php
class Person {
public static function say() {
echo "Here are my thoughts!";
}
}
class Blogger extends Person {
const cats = 50;
}
Blogger::say();
echo Blogger::cats;
?>
</p>
</body>
</html>