PHP script for Photo Gallery?

I'm working on a PHP based website for a client. I need an easy to use gallery/slide show written in PHP. Any recommendations out there?

Thanks!

I think Simpleviewer is a php based slideshow. I've started using it on my site on a couple pages. I do know it uses a php script to build the gallery

I use coppermine on chrisredding.com. Very easy to set up, and it has a whole user management element to it too.

Thanks for the suggestions!

I ended up developing my own gallery in PHP. It's not anythig fancy. Based on two URL params, you provide the name of the galley and file. You also have to put how many photos are in the folder.

It then builds a 15 column table with the photos. After every 15 it makes a new row. I'll show it when I'm done with my client's site.