title: how to run multiple php versions with nginx on ubuntu 14.04
body: <p>I watched a <a href="https://gist.github.com/jbinfo/d297fcfdb151e25a299c" rel="nofollow">gist</a> on github explains how
  run multiple versions of php on ubuntu 14.04 with apache.</p>
  
  <p>but how can we get the same result with nginx?</p>