Andrew Stopford has been developing web and software applications for the last seven years and is currently a web programmer with the major online retailer dabs.com. Andrew has written about various computing and web application subjects in magazines and websites worldwide, such as Web Update, Macromedia Europe Developer's Journal, Internet.Works, Zend.com, asptoday.com, and gendev.net. Andrew is also a member of various open source projects including XML-RPC for ASP Project and the NMatrix Project.

These reviewers contributed their considerable hands-on expertise to the entire development process for this book. As this book was being written, these dedicated professionals reviewed all the material for technical content, organization, and flow. Their feedback was critical to ensuring that this book fits our readers' need for the highest-quality technical information.

Zak Greant is the lead developer for 51 Degrees North (http://51north.com) and is a proud member of the Foo & Associates (http://fooassociates.com) programmers' cooperative. He leads the PHP Quality Assurance Team (http://qa.php.net/) and is an active contributor to the PHP documentation, mailing lists, and source code.

Dan Hendricks has been involved with the design of dynamic web pages for seven years. After finishing his undergraduate degree at the University of Wisconsin, Eau Claire, he worked as a web-based learning specialist for the university. Currently, he is working as a consultant for a regional web design company in Wisconsin and is pursuing a master's degree in information systems.

Graeme Merrall is a senior developer for the Internet arm of a major television station in Sydney, Australia. Graeme has been developing in PHP since version 2 and has authored a number of tutorials on PHP as well as being the co-author of PHP Functions Essential Reference, also from New Riders.

Torben Wilson is a freelance developer, technical, writer, and contributing author of New Rider's PHP Functions Essential Reference. He has been programming professionally in PHP since 1996 and has been on the PHP Documentation Team since 1997.