<?xml version="1.0" encoding="iso-8859-1"?>
<slide fontsize="3em">
	<title>Objects - Scope model</title>

	<blurb>The issue: Prevent user from accessing private object values.</blurb>
	<example result="1"><![CDATA[<?php
class ScopeModel {
	private $private;
	protected $protected;
	public $public = 'public';

	public function __construct() {
		// All properties can be accessed inside class
		$this->private = 'private';
		$this->protected = 'protected';
	}
}

$object = new ScopeModel();
echo $object->public, "\n";

// Would result in a fatal Error
// echo $object->private, "\n";
// echo $object->protected, "\n";
?>]]></example>
	<blurb>Protected properties and methods can not be accessed by inherited classes.</blurb>
</slide>
