This snippet shows you how to generate RSS Feeds from MySQL database records on the fly.
scripts.simplythebest.net/20/Generate-RSS-Feeds-in-PHP-script.html
RSS is a dialect of XML. All RSS files must conform to the XML 1.0 specification, as published on the World Wide Web Consortium (W3C) website. This document represents the status of RSS as of the Fall of 2002, version 2.0.1.
cyber.law.harvard.edu/rss/rss.html