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<?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, or more. But both
// cannot appear in the same VTIMEZONE.
//
// The validator is not specific yet to pick this up, so these
// rules are too loose.
'STANDARD' => '*',
'DAYLIGHT' => '*',
];
}
}
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