title: Removing a ROOT node using SimpleXML
body: <p>I have have the following code:</p>
  
  <pre><code>&lt;nutrition&gt;
      &lt;code&gt;
          &lt;lol1&gt;energy&lt;/lol1&gt;
          &lt;lol2&gt;protein&lt;/lol2&gt;
          &lt;lol3&gt;fat&lt;/lol3&gt;
      &lt;/code&gt;
  &lt;/nutrition&gt;
  </code></pre>
  
  <p>and I want:</p>
  
  <pre><code>&lt;code&gt;
      &lt;lol1&gt;energy&lt;/lol1&gt;
      &lt;lol2&gt;protein&lt;/lol2&gt;
      &lt;lol3&gt;fat&lt;/lol3&gt;
  &lt;/code&gt;
  </code></pre>
  
  <p>Is there any SimpleXML function to remove the ROOT node?</p>
  
  <p>(I know there is some DOM library, however I don't want to use it)</p>