title: How to add some content in menu item admin panel Magento
body: <p>I have create some menu and his sub menu in admin panel(it displays me a blank page) so i want to add some input then this input I want to do some SQL query (Save text in db), and this text i want to display it in some sms page. I dont know how.</p>
  
  <p><a href="http://i.stack.imgur.com/JRIrT.jpg" rel="nofollow">Menu admin panel</a></p>
  
  <p>W/Testimony/controllers/Adminhtml/TestimonyController.php</p>
  
  <pre><code>class W_Testimony_Adminhtml_TestimonyController extends Mage_Adminhtml_Controller_Action{
  
  
  protected function _initAction() {
      $this-&gt;_title($this-&gt;__('Paramétrage'))
          -&gt;_title($this-&gt;__('Témoignage'));
      $this-&gt;loadLayout()
          -&gt;_setActiveMenu('testimony/parametrage')
          -&gt;_addBreadcrumb(Mage::helper('adminhtml')-&gt;__('testimony'), Mage::helper('adminhtml')-&gt;__('testimony'))
          -&gt;_addBreadcrumb(Mage::helper('adminhtml')-&gt;__('Paramétrage'), Mage::helper('adminhtml')-&gt;__('Paramétrage'));
      return $this;
  }
  
  public function indexAction() {
      $this-&gt;_initAction()
          -&gt;renderLayout();
  }
  }
  </code></pre>
  
  <p>W/Testimony/etc/adminhtml.xml</p>
  
  <pre><code>&lt;config&gt;
  &lt;menu&gt;
      &lt;testimony translate="title" module="testimony"&gt;
                  &lt;title&gt;Témoignage&lt;/title&gt;
                  &lt;sort_order&gt;100&lt;/sort_order&gt;
                  &lt;children&gt;
                      &lt;parametrage translate="title" module="testimony"&gt;
                      &lt;title&gt;Paramétrage&lt;/title&gt;
                      &lt;sort_order&gt;1&lt;/sort_order&gt;
                      &lt;action&gt;adminhtml/testimony/index&lt;/action&gt;
                      &lt;/parametrage&gt;
                  &lt;/children&gt;
      &lt;/testimony&gt;
  &lt;/menu&gt;
  </code></pre>
  
  <p></p>
  
  <p>W/Testimony/etc/config.xml</p>
  
  <pre><code>&lt;?xml version="1.0"?&gt;
  &lt;config&gt;
  &lt;modules&gt;
      &lt;W_Testimony&gt;
          &lt;version&gt;0.0.1&lt;/version&gt;
      &lt;/W_Testimony&gt;
  &lt;/modules&gt;
  &lt;adminhtml&gt;
      &lt;layout&gt;
          &lt;updates&gt;
              &lt;testimony&gt;
                  &lt;file&gt;testimony.xml&lt;/file&gt; &lt;!-- I dont know what is this file ?--&gt;
              &lt;/testimony&gt;
          &lt;/updates&gt;
      &lt;/layout&gt;
  
      &lt;acl&gt;
          &lt;resources&gt;
              &lt;admin&gt;
                  &lt;children&gt;
                      &lt;testimony&gt;
                          &lt;title&gt;testimony Menu Item&lt;/title&gt;
                          &lt;children&gt;
                              &lt;parametrage translate="title" module="testimony"&gt;
                                  &lt;title&gt;param Menu Item&lt;/title&gt;
                              &lt;/parametrage&gt;
                          &lt;/children&gt;
                      &lt;/testimony&gt;
                  &lt;/children&gt;
              &lt;/admin&gt;
          &lt;/resources&gt;
      &lt;/acl&gt;
  &lt;/adminhtml&gt;
  &lt;global&gt;
  &lt;models&gt;
          &lt;w_testimony&gt;
              &lt;class&gt;W_Testimony_Model&lt;/class&gt;
          &lt;/w_testimony&gt;
      &lt;/models&gt;
  
      &lt;helpers&gt;
          &lt;testimony&gt;
              &lt;class&gt;W_Testimony_Helper&lt;/class&gt;
          &lt;/testimony&gt;
      &lt;/helpers&gt;
  
      &lt;blocks&gt;
          &lt;w_testimony&gt;
              &lt;class&gt;W_Testimony_Block&lt;/class&gt;
          &lt;/w_testimony&gt;
  
          &lt;w_testimony_adminhtml&gt;
              &lt;class&gt;W_Testimony_Block_Adminhtml&lt;/class&gt;
          &lt;/w_testimony_adminhtml&gt;
      &lt;/blocks&gt;
  
  &lt;/global&gt;
  
  &lt;admin&gt;
      &lt;routers&gt;
          &lt;adminhtml&gt;
              &lt;args&gt;
                  &lt;modules&gt;
                      &lt;w_testimony after="Mage_Adminhtml"&gt;W_Testimony_Adminhtml&lt;/w_testimony&gt;
                  &lt;/modules&gt;
              &lt;/args&gt;
          &lt;/adminhtml&gt;
      &lt;/routers&gt;
  &lt;/admin&gt;
  </code></pre>
  
  <p></p>
  
  <p>W/Testimony/Helper/Data.php</p>
  
  <pre><code>class W_Testimony_Helper_Data extends Mage_Core_Helper_Abstract{
  
  }
  </code></pre>
  
  <p>W/Testimony/Model/Testimony.php</p>
  
  <pre><code>class W_Testimony_Model_Testimony extends Mage_Core_Model_Abstract{
  
  
  public function _construct() {
      $this-&gt;_isPkAutoIncrement = false;
      $this-&gt;_init('w_testimony/testimony');
  }
  </code></pre>
  
  <p>}</p>