A php based mp3 player for iphone

I want to give my iphone user the opportunity to choose from a number of different songs and compile their own playlist. That playlist will automatically play the songs and segue from one to the other.

I can do it by creating several static links that they can click on and have the iphone open up a quicktime player and that's fine, but is there a more elegant solution that allows for the kind of thing that I describe above?