Object Oriented PHP for Beginners

This tutorial is designed to teach total beginners object oriented PHP. (Object Oriented Programming - OOP)

<?php
class person {
/* explicitly adding class properties are optional - but is good practice*/
var $name;

function __construct($persons_name) {
	$this->name = $persons_name;
	}
	public function get_name() {
	return $this->name;
	}
	/* protected methods and properties restrict access to those elements. */
	protected function set_name($new_name) { 
		if (name != 'Jimmy Two Guns') {
		$this->name = strtoupper($new_name);
		}
	}
}
/* extends is the keyword that enables inheritance */
class employee extends person {
	protected function set_name($new_name) {
		if ($new_name == 'Stefan Sucks') {
		$this->name = $new_name;
		}
		else if($new_name == 'Johnny Fingers') {
		parent::set_name($new_name);
		}
	}
	function __construct($employee_name) {
	$this->set_name($employee_name);
	}
}

/*----------------------------------------------*/
$stefan = new person('Stefan Mischook');
echo 'Stefan's full name: ' . $stefan->get_name();
$james = new employee('Johnny Fingers');
echo '---> ' . $james->get_name();
?>