This time, we are making a Simple AJAX Commenting System. It will feature a gravatar integration and demonstrate how to achieve effective communication between jQuery and PHP/MySQL with the help of JSON. Note: This tutorial is quite old and doesn't work in PHP7 and above. We are keeping it online only as a reference. Step 1 - XHTML First, lets take a look at the markup of the comments. This code i
![Simple AJAX Commenting System](https://cdn-ak-scissors.b.st-hatena.com/image/square/d7c5f322c028d4ead42636619158694294d416a4/height=288;version=1;width=512/https%3A%2F%2Ftutorialzine.com%2Fmedia%2F2010%2F06%2F990.jpg)