title: How to display PHP & HTML source code on a page?
body: <p>How would one go about showing PHP code on user end. Sort of like <a href="http://www.w3schools.com/dtd/default.asp" rel="nofollow">w3School</a> does?</p>
  
  <p>Having lets say a grey area div, and then showing the code in there without activating it?</p>