Pattern Replacing

H- Well here's a pattern replace issue which I've been working on without success hence the post. 8^) I have a variable that has stuff in it (tree, bird, nest, )(yes there is a trailing space) What I'd like to do is strip off the last ', ' and replace it with a single space so that I have (tree, bird, nest ) I thought I had it with a simple substr_replace but it only returned my replace character. I thought that ereg_replace would work but got infinitly lost with the []\s(.) stuff. If I was in perl I'd do something like (s/,.$/ /ig). I think. Never fully grasped the pattern stuff anyway. 8^/ But anywhoo... if anyone has any ideas send them along. Any help would be greatly appreciated. Thanks. -Sterling