Include html inside of

pretty new to PHP as well, I am trying to have a php load a file dynamically depending an ID that added to the page. The idea is to have one file for multiple pages... I have multiple pages loading different sidebars:

<?php

if ($PageType == 'about'){
    echo "
         <img src='http://ift.tt/1lULRDG' alt='' title='' class='img' />
         include('../include-images.html'); 
         <a href='#'><img src='http://ift.tt/1TogOLx' alt='' title='' class='img' /></a>
         <br class='brclear'/>
         ";
}

Any help how to run that INCLUDE('../include-images.html'); inside <?php if echo "" ?