title: cakephp 3.0 hidden form value and name
body: <p>I want to create a hidden form input where I want to put my hidden value I want my form like this :</p>
  
  <pre><code>&lt;input type="hidden" name="d_id" value="2"&gt;
  </code></pre>
  
  <p>How can I create a form?</p>