How can I get integer array inputted by user with commas

I want to achive someting like this: User input values here for example 1,2,3

Your values: 1,2,3 [1,2,3 is inputed by user in one line]

and this values are pushed to array.I need check here if number is not bigger than max number for example 4 and isnt below 1.

I came up with this code. It takes msg to show for user and max num,but as you can see it only can return single value and i have no idea how to modify it to work as i discribed it.

const int getMultipleIntAboveZero(const std::string &msg,int maxNum){
  int num;
  std::cout<< msg;
  while(!(std::cin>>num)|| num < 1 || num > maxNum){
    std::cin.clear();
    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
    std::cout<<"\nInvalid input. Try again: ";
  }
  return num;
}