Hi,

This is a good article by the way. I found an issue, it frequently displaying null username and message on the message box. And at the server. script that running on shell it displaying message : Notice: Trying to get property of non-object in D:\xampp\htdocs\maca_group_chat\server.php on line 52 Notice: Trying to get property of non-object in D:\xampp\htdocs\maca_group_chat\server.php on line 53 Notice: Trying to get property of non-object in D:\xampp\htdocs\maca_group_chat\server.php on line 54