public function isWorkingDay() { global $AppUI; if ($AppUI->isActiveModule('holiday')) { // Holiday module, check the holiday database require_once W2P_BASE_DIR . "/modules/holiday/holiday_functions.class.php"; if (HolidayFunctions::isHoliday($this)) { return false; } } $working_days = w2PgetConfig('cal_working_days'); $working_days = is_null($working_days) ? array('1', '2', '3', '4', '5') : explode(',', $working_days); return in_array($this->getDayOfWeek(), $working_days); }