HTML, HTTP, and XML are the undisputed triumvirate that form the backbone of Web technology. For the PHP developer, working with these can be frustrating. The new QueryPath library, a PHP cousin of the jQuery JavaScript library, offers an efficient API for working with XML, HTML, and HTTP. From Web pages to Web services, SVG to SPARQL, RDF to Atom, QueryPath provides a robust yet simple API for contemporary Web development in PHP. In this article, learn how to build QueryPath objects, and how to traverse and manipulate XML and HTML. Walk through an example that uses QueryPath to access a Web service (Twitter).