Looking for a php minifier script for PHPv 5.1.3

Hey all,
I’m looking for a PHP minify script to combine JS and CSS files that works on servers loaded with PHP v 5.1.3. From my brief search, many of the PHP scripts require PHP v5.1.6 at a minimum. Anyknow know of any solutions? Thanks.

Is there a specific reason you are sticking to 5.1.3? It would be much better to upgrade to take advantage of the new features and security fixes of the latest stable release of PHP. Your options will be larger if you can find a way to upgrade.

Thanks, but it’s merely a development server…and it’s the only option I have at the moment. So, any ideas of a script that would run in 5.1.3? Thanks.