Unable to add FeedFlare code in header due to PHP

I want to add the FeedFlare code into the header section but since it contains php code I am not able to do it.

Here is the code that google generated to be added:
<script src="http://feeds.feedburner.com/~s/---/---?i=<?php the_permalink() ?>" type="text/javascript"></script>

I can add a script through 'Add HTML/CSS Insert' option of the ATO but it does not allow the imbedded PHP code. Would appreciate any help. Thanks.