<?php namespace Sabre\VObject; /** * Base class for all elements * * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved. * @author Evert Pot (http://www.rooftopsolutions.nl/) * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License */ abstract class Element extends Node { public $parent = null; }