title: How to keep PHP opening and closing tags in ckeditor source as html entity?
body: <p>In ckeditor, I'm sharing code snippets such as php, html, etc. So for example I would share this:</p>
  
  <pre><code>&lt;?php
  //Something here...
  ?&gt;
  </code></pre>
  
  <p>Which appears in source view as this:</p>
  
  <pre><code>&amp;lt;?php
  //Something here...
  ?&amp;gt;
  </code></pre>
  
  <p>When I save it to mysql, the code stays as it should. But when I load up the code, ckeditor changes the code in source view to:</p>
  
  <pre><code>&lt;!--?php 
  //Something here...
  ?--&gt;
  </code></pre>
  
  <p>Are there any solutions to fix this?</p>