title: display that doesn't make sense trying to execute method of the class
body: <p>I'm rather confused with getting unexpected symbol 'f' in my controller.
  The code of controller is this one:</p>
  
  <pre><code>public function viewmongotestAction()
  {
      $this-&gt;_helper-&gt;layout()-&gt;disableLayout();
      $this-&gt;_helper-&gt;viewRenderer-&gt;setNoRender(true);
  
              //exit();  //if I uncomment this I don't get output f
  
      $defaultItemsPerPage = Model_SubscriberMongo::getDefaultItemsPerPage();             
  }   
  </code></pre>
  
  <p>They shouldn't be any output at all but I 'f' is displayed:</p>
  
  <p>The code of the method is:</p>
  
  <pre><code>public static function getDefaultItemsPerPage()
  {
      return 25;
  }
  </code></pre>
  
  <p>The definition of the class:</p>
  
  <pre><code>class Model_SubscriberMongo extends Shanty_Mongo_Document
  </code></pre>
  
  <p>It's a class representing document in mongodb.
  Could you please tell me why do I have f in the output of the controller? It seems rather confusing for me now. Thank you for you assistance.</p>