With the plethora of mobile devices available on the market, it's increasingly important to be able to identify the capabilities of those devices in order to present content in a an appropriate way. For instance, if the device is not capable of displaying images, you might want to omit them from the markup; alternately, if a device is capable of Flash, you may want to provide a Flash-based user interface. The process of identifying a device's capabilities typically first requires knowing the HTTP User Agent, and then comparing that user agent against a database of user agent capabilities.

The screencast lasts about 30 minutes and shows you how to set up a Zend Framework 1.1 application and integrate the WURFL data to help with determine the mobile device of the user.