title: Add six months in php
body: <p>I'm trying to get the month, six months out from the current date.  </p>
  
  <p>I've tried using:</p>
  
  <p><code>date('d', strtotime('+6 month', time()));</code></p>
  
  <p>But it doesn't seem to work, always returns <code>01</code>.  Is there a better way to do this?</p>
  
  <p>Thank you!</p>