AJAX stands for Asynchronous JavaScript and XML. AJAX is a web development and programming technique for creating interactive web apps using XML, HTML, CSS and JavaScript. Ajax web applications send data to and retrieve data from a server asynchronously without interfering with the display of the current web page.

Ajax makes it possible for web developers to build and design modern web applications that work on most modern browsers. Building websites with PHP and AJAX technologies is a stable, reliable and professional approach used in modern website design and programming.


AJAX allows developing better and faster apps that work like a charm. Ajax uses XHTML for content, CSS for presentation and JavaScript for displaying dynamic web page content. AJAX technology is independent of web server software. So, the users can continue using the application while the client program requests the server. When the user clicks on an Ajax-based application, the page displays what they are asking for without reloading the entire browser page.

Ajax Web Applications

Google Maps is the best-known Ajax application that refreshes almost before your eyes when you use it. There is very little lag and you don’t have to wait long for web application to reload. Besides mapping applications, examples of AJAX apps include e-mail apps, real-time searches, live shopping cart apps, online chats.

Developing web apps using Ajax programming:

• Browser-based presentation using XHTML and CSS standards • The Document Object Model for dynamic data display and interaction • Data stored in XML format and received from server • Data retrieval with XMLHttpRequest in the browser • JavaScript brings these technologies together

In standard web apps, the interaction between the user and the server is synchronous and involves several processes which have to happen after the other and require a lot of user waiting. Firstly, the user accesses the web application. Then, the request is processed by the server that sends data to the browser while the user is waiting. The user again clicks around the application and the server again sends data back to the browser while the user is waiting. So, why use AJAX?

use ajax programming


Ajax acts as an intermediary. Ajax works within the browser and allows for the interaction with the application and the customer to happen independently of any interaction with the server. Ajax is asynchronous, this is why using Ajax. But, remember that AJAX applications will not work in web browsers that do not support JavaScript.

AJAX itself is not a technology. Ajax is a combination of web development technologies that work together to allow client-server interactions occur without requiring pages to reload. AJAX based web applications gain high levels of processing, accessibility and interactivity.