$sFrom = filter_input(INPUT_POST, 'fromyear', FILTER_SANITIZE_NUMBER_INT).'-'
                    .Tools::dateAddLeadingZero(filter_input(INPUT_POST, 'frommonth', FILTER_SANITIZE_NUMBER_INT)).'-'
                    .Tools::dateAddLeadingZero(filter_input(INPUT_POST, 'fromday', FILTER_SANITIZE_NUMBER_INT))
                ;