The TutsPlus.com site has a new tutorial posted showing you how you can use PHP, jQuery and AJAX together to help make the overall user experience of your application better and more responsive.

Today, we’re going to explore the concept of AJAX with PHP. The AJAX technique helps you to improve your application's user interface and enhance the overall end user experience.

The post starts with an introduction to AJAX - what it is, how it's commonly used and how the normal requests flow. They then show how it works with normal "vanilla" Javascript (no jQuery) and how that compares to the jQuery version. It then dives into the real-world example script, showing how to create a form that sends login information to the backend for evaluation via a POST request.