To start, do as follows:

• give execution permition to the bin websocket server, like so: $ chmod +x ./bin/websocketserver
• run $ composer install
• run $ bin/websocketserver 8888 to start the websocket server at the port 8888 (the default port)
• run $ php -S localhost:8000 -t ./public to start a webserver in PHP at port 8000
• open the project in the browser using the url you configured (http://localhost:8000/) and login in the chat

Note: to test the interaction, use a different tab in the browser and login with a different username :)

if you change the port, you also have to change it in the JS file at public/js/app.js

• PHP
• Ratchet (php websocket server)
• Twitter Bootstrap