To be able to run the program you must have PHP and Composer installed.
You can install it by running the bash script included.
$ ./setup.bash
After installing you can simply run the PHP server by shown below
$ php server.php &
While running open up another tab on the terminal and run nc or telnet like below
$ nc localhost 1337
You can open multiple terminals to test for other users joining the channel
Amp: for making connection simple