public static function updateEndingDate($id, $newEndingDate, $oldEndingDate) { if (strcmp($newEndingDate, $oldEndingDate) === 0) { return false; } Dates::initDateTime($newEndingDate, $oldEndingDate); ScheduleFetcher::updateSingleColumn($id, ScheduleFetcher::DB_COLUMN_END_TIME, $newEndingDate, PDO::PARAM_STR); return true; }