The WebSocket is a feature of HTML5 for establishing a socket connections between a web browser and a server, once the connection has been established with the server, all WebSocket data (frames) are sent directly over a socket rather than usual HTTP response and requests, giving us much faster and persistent communication between a web browser and a server. Let’s create a simple chat system using this cool technology (HTML5 WebSocket and PHP).

Facebook has this nice little chat box that doesn’t take up much space, and people can instantly interact with their friends, it is a cool feature to have in any website. Let’s get inspired and create an similar shoutbox which will look similar to Facebook chat box.

Voting system can be important part of any website, especially if you want to keep track of user ratings. Let’s create a cookie based voting system, similar to YouTube like & dislike buttons (Thumbs up & Thumbs down), which can be applied to any content.

Live username checker for registration has become useful part of registration system. It allows visitor to check for availability of username before they can register on one’s site. This script however can also be used for other purpose, such as checking city name, baby name or other miscellaneous things. Today let’s learn how we can create this nifty little script that checks available username for registration using jQuery Ajax and PHP.