<?php namespace Sabre\VObject\Component; use Sabre\VObject; /** * The VTimeZone component. * * This component adds functionality to a component, specific for VTIMEZONE * components. * * @copyright Copyright (C) fruux GmbH (https://fruux.com/) * @author Evert Pot (http://evertpot.com/) * @license http://sabre.io/license/ Modified BSD License */ class VTimeZone extends VObject\Component { /** * Returns the PHP DateTimeZone for this VTIMEZONE component. * * If we can't accurately determine the timezone, this method will return * UTC. * * @return \DateTimeZone */ function getTimeZone() { return VObject\TimeZoneUtil::getTimeZone((string)$this->TZID, $this->root); } /** * A simple list of validation rules. * * This is simply a list of properties, and how many times they either * must or must not appear. * * Possible values per property: * * 0 - Must not appear. * * 1 - Must appear exactly once. * * + - Must appear at least once. * * * - Can appear any number of times. * * ? - May appear, but not more than once. * * @var array */ function getValidationRules() { return [ 'TZID' => 1, 'LAST-MODIFIED' => '?', 'TZURL' => '?', // At least 1 STANDARD or DAYLIGHT must appear. // // The validator is not specific yet to pick this up, so these // rules are too loose. 'STANDARD' => '*', 'DAYLIGHT' => '*', ]; } }