I would highly recommend this as a resource for every developer who wants to really dig and solidify their working knowledge of PHP and web services, or simply want to explore the nuances and complexities of XML DTDs and namespaces. ? Nathan Smith, Project Godbit Pro PHP XML and Web Services is the authoritative guide to using XML features of PHP 5 and PHP 6. No other book covers XML and Web Services in PHP as deep as this title. Topics include DOM, SimpleXML, SAX, XmlReader, XSLT, RDF, RSS, WDDX, XML-RPC, REST, SOAP, and UDDI. Author Robert Richards, a major contributor to the PHP XML codebase, is a leading expert in the PHP community.