From where I'm standing it doesn't seem to be possible to mix XHTML and PHP.Thus far I've just been using mixing basic HTML and PHP together and everyone is happy. However I'm starting in on XHTML ...

HyperEdit, the HTML and PHP text editor, improves support for Leopard, gains stability fixes and makes other enhancements in its 1.6 release.

PHP HTML file upload tutorial Don’t fret if you’re a developer with an Apache web server and the goal is to code an HTML5 and PHP file upload component. Modern browsers, along with simplified ...