onTimeRangeSelected: giving 3 value start/end/resource
how can i get more data, wanted access custom values like room category so on...
backend_rooms.php
foreach($rooms as $room) {
  $r = new Room();
  $r->id = $room['rm_no'];
  $r->name = $room['rm_no'];
  $r->rm_cat = $room['rm_Cat'];
  $r->capacity = 2;
  $r->status = $room['status_f'];
  $result[] = $r;
  
}
header('Content-Type: application/json');
echo json_encode($result);
index.php/onTimeRangeSelected 
How can i access rm_cat in onTimeRangeSelected  event?
dp.onTimeRangeSelected = function (args) {
How can i access rm_cat here
                    //var name = prompt("New event name:", "Event");
                    //if (!name) return;
 console.log ( args );       
                    var modal = new DayPilot.Modal();
                    modal.closed = function () {
                        dp.clearSelection();
                        // reload all events
                        var data = this.result;
                        if (data && data.result === "OK") {
                            loadEvents();
                        }
                    };