Server-side XSLT transformations

If you need to transform XML with XSLT on the server, you could use MSXML on Microsoft platforms (ASP) or built-in XSL functions in PHP 5. The beauty of the PHP functions is that they provide the same API as the Firefox browser and the Sarissa library, so you don't have to reinvent the wheel.

I would often use XSLT on the server to separate data (XML) from its presentation. Its usage also results in cleaner server-side code, as the markup generation is separated from the programming logic. It's also extremely useful if you want to deploy XML/XSLT-based solution that has to support low-end clients (for example, search engine spiders).