Is there a way to put php inside of a IE conditional comments

Question

I have a php section that loads jquery through wordpress from google's api. I dont want to load jquery on IE browsers. Long story short, it doesn't work for whatever reason (you can read through my other posted questions).

Or if this is not possible is there another way to NOT use this code when its an IE browser, maybe a php solution.

<?php 
    if( !is_admin()){
        wp_deregister_script('jquery');
        wp_register_script('jquery', 'http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js', false, '1.5.2', true);
        wp_enqueue_script('jquery');
    }

?>

Targets everything except IE (what i was trying to use, but it didnt work):

<!--[if !IE]><!-->
<!--<![endif]-->

Answer 1

You have the global $is_IE in Wordpress.