title: Use PHP to delete section of .html file
body: <p>I have an HTML page I'd like to edit. I want to remove a certain section of the .html file such as.</p>
  
  <pre><code>&lt;div id="gg"&gt;
  ......
  ......
  &lt;/div&gt;
  </code></pre>
  
  <p>How can I do this?</p>