Unfortunately, PHP 4s XML support was somewhat limited. Some extensions did not prove to be very stable. http://www.brainbell.com/tutorials/php/Using_XML.htm
RSS stands for Really Simple Syndication. RSS if a technology for distributing data from one site to another using XML. http://www.codebeach.com/tutorials/displaying-rss-feeds-on-your-websit...
Learn how to build an RSS file from your database information and write it to a file to automate your feeds. http://www.shadow-fox.net/tutorial/Building-an-RSS-Feed-From-a-Databas...
This article will show how to make a single PHP file which will imitate an RSS Feed http://www.shadow-fox.net/tutorial/Generating-RSS-Feeds-on-the-Fly-Wit...
If you run a content driven web site, even a blog, one problem you might find is getting content. http://www.shadow-fox.net/site/tutorial/37-Building-Content-By-Parsing...
Using Ajax, this script makes it easy to display RSS feeds from other sites inside DIV containers, by communicating with a versatile PHP RSS parser . http://www.dynamicdrive.com/dynamicindex18/rssdisplaybox/index.htm
In this tutorial I will show you how to get your MySQL database description / layout in XML format. http://www.phptoys.com/e107_plugins/content/content.php?content.53