Ajax is in and the web world seems to be making the most of it as a number of big names in the world of web have implemented Ajax in their sites and a number of them still continue to do so. Larry Ullman has made a wonderful effort to talk about the code required for using Ajax to move from a simple webpage to a JavaScript function to an XMLHttpRequest to a PHP script and lastly to an oracle database. Here a registration form has been used by Larry to put his point across. He has explained everything wonderfully in the steps mentioned below:

Step 1: Programming the Database Query
Step 2: Testing the PHP Script
Step 3: Programming the JavaScript
Step 4: Making a JavaScript-functional HTML Form
Step 5: Testing the Ajax Process

This article explains to you how Ajax process implementation can be achieved via PHP and Oracle and accomplishes server side validation within the client. A must read!!