Linux Do-It-Yourself: Part XIII - Processing Web Forms with PHP and MySQL

A tutorial on how to program in PHP by Scott Courtney from Technical Support Magazine (May 2003, PDF)

"This month, we'll learn how to accept data entry and selections from an end user HTML form, process the form in PHP, and return the results to the browser as a pure HTML Web page that is compatible with any browser."

http://www.naspa.com/node/1476/