Проверка JavaScript, если два диапазона даты перекрываются
if((StartDate1 <= EndDate2) && (StartDate2 <= EndDate1)) {
//overlapping dates
}
Sironicas
if((StartDate1 <= EndDate2) && (StartDate2 <= EndDate1)) {
//overlapping dates
}public function check_time_overlap($start_time1, $end_time1, $start_time2, $end_time2) {
return (($start_time1) <= ($end_time2) && ($start_time2) < ($end_time1) ? true : false);
}
// true: overlap
// falseL not overlap(StartDate1 <= EndDate2) and (StartDate2 <= EndDate1)