php how to get a random value between 2 users : i have selected two users with their id.
eg:

    $user_one = 1034;
    $user_two = 1098;
    $new_id = "";

Now i want to select one user between these two users **Randomly**. Can someone please help me how to select random ids from given ids.
eg:

    $new_id = $get_random_id  //Must be 1034 or 1038 