title: Zend_Dom_Query how to get html code of current node
body: <p>I have nodes, and iterate them in loop.</p>
  
  <pre><code>$html = &lt;&lt;&lt;HTML
      &lt;div id="test"&gt;
      &lt;span&gt;1&lt;/span&gt;
      &lt;span&gt;2&lt;/span&gt;
      &lt;/div&gt;
  HTML;
  $dom= new Zend_Dom_Query($html);
  $results = $dom-&gt;query('span');
  foreach($results as $node){
  ...
  }
  </code></pre>
  
  <p>How get html code of node? (not innerHTML, full HTML code <code>&lt;span&gt;1&lt;/span&gt;</code>)</p>