title: How to calculate the difference of datetime field and now in Cakephp?
body: <p>I have a <code>datetime</code> field in my database that contains the following information:</p>
  
  <pre><code>2015-08-04 18:59:01
  </code></pre>
  
  <p>I want to check the difference between that <code>datetime</code> field and now using <code>Cakephp framework</code> ?</p>