title: Var_dump return null...why?
body: <p>Good Morning,
  I work with zend framework (php) and I see in <code>var_dump</code> the value of an option to a select after I send a POST request.</p>
  
  <p>code : </p>
  
  <pre><code>&lt;div class="entry"&gt;
  &lt;form action="&lt;?php echo $this-&gt;escape($this-&gt;form-&gt;getAction()); ?&gt;" method="&lt;?php echo $this-&gt;escape($this-&gt;form-&gt;getMethod());?&gt;"&gt;
   &lt;h2 class="selectVisibility"&gt;Seleziona la stagionalità : 
         &lt;select name="cambiaStagionalita"&gt;
           &lt;option value="ND"&gt;&lt;/option&gt;
           &lt;?php foreach ($this-&gt;seasons as $season) : 
              $from = new Zend_Date($season['from']);
              $until = new Zend_Date($season['until']);
          ?&gt;
          &lt;option value="&lt;?php echo $season['from'];?&gt;"&gt; Dal &lt;?php echo $from-&gt;toString(Zend_Date::DAY_SHORT. " " .Zend_Date::MONTH_NAME. " ".Zend_Date::YEAR);?&gt; al &lt;?php echo $until-&gt;toString(Zend_Date::DAY_SHORT. " " .Zend_Date::MONTH_NAME. " ".Zend_Date::YEAR);?&gt;&lt;/option&gt;
           &lt;?php endforeach; ?&gt;
        &lt;/select&gt;
      &lt;/h2&gt; &lt;div&gt;&lt;/div&gt;&lt;br/&gt;
      &lt;input type="submit" name="public" value="Cerca"/&gt;
  </code></pre>
  
  <p>Code php action from controller :</p>
  
  <pre><code>$form = new Application_Form_Hotel_Costs();
  $form-&gt;createForm2($seasons, $rooms, $mealPlans);
  var_dump($form-&gt;getValue("cambiaStagionalita"));
  //exit(0);
  </code></pre>
  
  <p><code>Var_dump</code> returns null .why? The option value is identical to db field.Help !</p>