In a link from this morning, there's a note about Christian Stocker's slides from the International PHP Conference 2004 given yesterday.

His topic was Workshop: XML in PHP5 and covers a very wide range of topics under that. He covers a bit of the history of XML in PHP, as well as a simple intro to what XML/XSL/XPath really is. Then, he moves into the real meat of the speech - a discussion of each way that PHP5 will be able to parse/manipulate XML. This list includes: the SAX parser, the XMLReader extension (another 'stream-based' parser similar to SAX), SimpleXML (like the name, one of the simplest, OOP approaches to XML documents), the functionality of XPath (using the DOM tools), a few sample XSLT documents, and, of course, the DOM extension (which was completely rewritten for PHP5).

Overall, these slides are worth a look, if for nothing more then a reference on the different XML parsing/manipulation options that will be there waiting for you in PHP5. I just wish that the folks from the International PHP Conference would record these speeches and make a DVD out of them... (ala PHPQuebec).