I found this library to use web-socket protocol in code-igniter
codeigniter-websocket and I did all the steps. I even make the same example in the description and I got this Error
An Error Was Encountered
Unable to load the requested class: Codeigniter_websocket
It was a bug of that package. It does not load the package library due to incorrect vendor path. This bug has been fixed. Codeigniter WebSocket Library has been updated. Please Update the library. If you face installation problem You may also check the Codeigniter WebSocket Example