title: Basic Hidden field in yii
body: <p>I'm trying to place data in hidden text in yii, but I don't know how. 
  I need a similar code to a regular php syntax:</p>
  
  <pre><code>&lt;input type="hidden" name="field_name" value="a"/&gt;
  </code></pre>
  
  <p>It's supposed to be a field with static value of a. I just need it to go with my $_POST variables for error checking.</p>
  
  <p>Is it possible to avoid modifying the models and controllers just to put the field in?I cant use gii cause I only have snippets of code with me.Sorry as well as I have little understanding of yii so I have no clue if what I'm saying about the last 2 sentences is correct.</p>