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Most PHP programmers will eventually run into an XML data set. The easiest way to deal with this data is using the SimpleXML extension for PHP. In this course, David Powers walks through loading and extracting data from a basic XML document, working with namespaces, and editing XML elements and attributes with SimpleXML and the XPath query language.

Document the ins and outs of your APIs to ensure those who interface with your applications are successful and those who enhance your products have a manageable framework they can reference.

In this course, Jen Kramer shows how to build a custom Joomla! template that automatically tailors and sizes content for a wide range of displays, from desktops to mobile devices. This course covers using Joomla! 3 with its built-in Bootstrap framework, and a start-to-finish development strategy that covers everything from converting the wireframe to HTML, to styling the headers and footers. Jen also shows how to incorporate Dreamweaver and the Firefox developer tools into your workflow, and accommodate multiple layouts and color variations in a single template.

In Flex 4.5 and PHP: Creating Data-Driven Applications, author Drew Falkman shows developers how to integrate Flex applications with PHP-based data services. The course demonstrates retrieving XML data from a PHP server with HTTPService, connecting PHP classes to Flex using the amfPHP, WebOrb and ZendAMF adapters, and using the PHP data wizards in Flash Builder to save development time. The course also previews the Zend Studio IDE bundled with Flash Builder 4.5 for PHP and covers advanced topics such as setting up Flex mobile projects and changing servers at run time. Exercise files accompany the course.

Providing a file from a database in exactly the same format that's requested by the user is an extremely valuable technique.