title: can PHP and node.js run on the same server
body: <p>I have a web application with Apache and PHP on the back end. I am in the process of enhancing this with many new features and considering using node.js for the new work.</p>
  
  <p>First of all, can PHP and node.js co exist on the same machine? I do not see why not.
  Second, can I just call node.js code directly from Javascript and return JSON back?</p>