What is JSON, and what can it do? In this tutorial you learn how to use JSON to easily move data around the web. You also look at how to work with JSON using both JavaScript and PHP.

Tutorial on how to use jQuery Drag and Drop to sort a HTML menu tree.

Tutorial on how to prepopulate and save a multi select list selection by way of Ajax, JSON and jQuery.

Tutorial on how to shorten all urls in a text area by way of bit.ly and some jQuery, Ajax and PHP.

This tutorial shows you how to use PHP to return a JSON object to a client.

Simple how to on using jQuery JSON to pass javascript objects to PHP. In PHP we use the new json_encode and json_decode functions to make sense of the information we get from the Javascript through Ajax.