title: Real-time HTML5 web application without Node.js
body: <p>What would be the most appropriate way to make a real-time web app that works on PHP (Apache web server)? <br/>
  The idea of web application is to let two users at the same time edit same HTML form which is regularly saved to MySQL DB. <br/>
  I am thinking about AngularJS + Laravel approach with lots of AJAX requests, but maybe there is more appropriate way to do this (maybe WebSockets)? <br/>
  There are no requirements for browser compatibility except that it would work on latest version of Chrome. </p>