title: include file content php
body: <p>I want to include the content from a php file into another php file. (It's in a wordpress site)<br>
  Include or require won't work because it's just including the file, I need the content itself.<br>
  file_get_contents is also not working because it just displays my php code and does not execute it.</p>
  
  <p>what function do I have to use?</p>