http://www.developer.com/webcast/article.php/3863446/Video-Passing-Data-Between-PHP-and-JavaScript-Using-JSON.htm
Got seven minutes to learn how you can harness the power of PHP, JavaScript and JSON in a powerful AJAX-driven web application? This Internet.com Video tutorial shows you all you need to know to pass data between the client and server using JSON data format. After a brief introduction to JSON (JavaScript Object Notation), noted author and PHP Guru Jason Gilmore demonstrates how to implement an end-to-end web solution that involves the following steps:
Video: Passing Data Between PHP and JavaScript Using JSON
February 5, 2010
View the entire seven-minute video tutorial at Internet.com/Video:
Passing Data Between PHP and JavaScript Using JSON