36 lines
878 B
PHP
36 lines
878 B
PHP
<?php
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namespace Da\User\Helper;
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use DateTimeZone;
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use yii\helpers\ArrayHelper;
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use DateTime;
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class TimezoneHelper
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{
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/**
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* Get all of the time zones with the offsets sorted by their offset.
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*
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* @return array
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*/
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public static function getAll()
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{
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$timeZones = [];
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$timeZoneIdentifiers = DateTimeZone::listIdentifiers();
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foreach ($timeZoneIdentifiers as $timeZone) {
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$date = new DateTime('now', new DateTimeZone($timeZone));
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$offset = $date->getOffset() / 60 / 60;
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$timeZones[] = [
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'timezone' => $timeZone,
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'name' => "{$timeZone} (UTC ".($offset > 0 ? '+' : '')."{$offset})",
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'offset' => $offset,
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];
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}
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ArrayHelper::multisort($timeZones, 'offset', SORT_DESC, SORT_NUMERIC);
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return $timeZones;
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}
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}
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