PHP doesn’t spring to mind when thinking about processing XML data, but PHP is a better solution than you might think. Since PHP is used to develop websites, which use HTML a standard based on the principles of XML, PHP is a sensible choice. PHP also includes powerful tools for parsing and manipulating XML data. We can use this to our advantage to convert and manipulate XML information in our PHP based web applications. XML-RPC and SOAP also use XML, so the use of a web-based language for web-services is also another obvious choice.All of these situations are covered in extensive detail by Thomas Myer in his new book, No Nonsense XML Web Development with PHP from publisher SitePoint, a long time source for articles and information on web applications and development.