PHP - AJAX Introduction
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AJAX is about updating parts of a web page, without reloading the whole page.
What is AJAX?
AJAX is a technique for creating fast and dynamic web pages.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.
Examples of applications using AJAX: Google Maps, Gmail, Youtube, and Facebook tabs.
How AJAX Works
AJAX is Based on Internet Standards
AJAX is based on internet standards, and uses a combination of:
- XMLHttpRequest object (to exchange data asynchronously with a server)
- CSS (to style the data)
- XML (often used as the format for transferring data)
AJAX applications are browser- and platform-independent!
AJAX was made popular in 2005 by Google, with Google Suggest.
Start Using AJAX Today
In our PHP tutorial, we will demonstrate how AJAX can update parts of a web page, without reloading the whole page. The server script will be written in PHP.
If you want to learn more about AJAX, visit our AJAX tutorial.
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