sorting multi-dimensional arrays

I have a question about sorting multidimensional arrays. Here is my problem: I have an 2-d array: $joke[1][rating]=10; $joke[2][rating]=20; $joke[3][rating]=15; .... I would like to sort the jokes into an array based on the rating from highest to lowest. The end result would be something like this: Joke 2 : 20 points Joke 3: 15 points Joke 1: 10 points How do I accomplish this? I have tried fooling around with sort(), arsort(), and array_multisort(), but I just can't get it. Thank you very much for your time. Shane