title: Wrap all images with a div using DOMDocument
body: <p>I have a large html document, with several images. I want to wrap all the images inside <code>div.wrapped</code>. How would I do this with <code>DOMDocument</code>?</p>
  
  <p>I've seen the <code>appendChild</code> method, but that only appends elements at the end. How can I insert one in the middle, and then move the image inside it?</p>