title: Cakephp hidden input field
body: <p>So i have this field i want to keep hidden in my form.</p>
  
  <p>For this purpose i have tried the following:</p>
  
  <pre><code>&lt;?php echo $this-&gt;Form-&gt;input('group_id', array('hiddenField' =&gt; true, 'value'=&gt; 2)); ?&gt;
  </code></pre>
  
  <p>I also tried:</p>
  
  <pre><code>&lt;?php echo $this-&gt;Form-&gt;input('group_id', array('options' =&gt; array('hiddenField'=&gt; 'true'), 'value'=&gt;2 )); ?&gt;
  </code></pre>
  
  <p>How ever i still see the input field..</p>
  
  <p>What am i doing wrong?</p>