title: How to use @package & @subpackage in phpdoc?
body: <p>I'm wondering how I should use @package &amp; @subpackage for class doc.</p>
  
  <p>let say I've the following class</p>
  
  <pre><code>class My_Controller_Action_Helper_MyHelperAction extends Foo_Bar {}
  </code></pre>
  
  <p>Should it be:</p>
  
  <pre><code>@category    My
  @package     Controller
  @subpackage  Action_Helper
  </code></pre>
  
  <p>or </p>
  
  <pre><code>@category    My
  @package     Controller
  @subpackage  Action_Helper_MyHelperAction
  </code></pre>
  
  <p>or</p>
  
  <pre><code>@category    My
  @package     Controller_Action
  @subpackage  MyHelperAction
  </code></pre>
  
  <p>or</p>
  
  <pre><code>@category   My
  @package    My_Controller_Action
  @subpackage MyHelperAction
  </code></pre>
  
  <p>What if use namespace instead of '_'?</p>