public function timezoneList() { $version = phpversion(); if ($version <= 5.2) { return Widgets::timezoneList(); } $list[''] = Yii::t("default", 'Please Select'); $tzlist = DateTimeZone::listIdentifiers(DateTimeZone::ALL); if (is_array($tzlist) && count($tzlist) >= 1) { foreach ($tzlist as $val) { $list[$val] = $val; } } return $list; }