$data['packageRooms']=array(); $RoomRefArr=array(); foreach ($data['packageRooms'] as $val){ $key=$val['packageRoomCode']; $RoomRefArr['roomReferences'][$key]=$val['roomReferences']; $RoomRefArr['occupancy'][$key]=$val['occupancy']; }

func add(a, b int) int {
  return a + b
}