PhpMyAdmin alias: php not executed

I'd like phpmyadmin to be available to all domains from the single install above. It's currently installed in /usr/share/phpMyAdmin

The default install added this alias in /etc/httpd/conf.d/phpmyadmin.conf:

Alias /phpmyadmin /usr/share/phpMyAdmin

While the phpmyadmin frame shows up at domain.com/phpmyadmin, php isn't getting executed (lots of

<?php
 echo $var
?>

visible).

I've also tried adding a directory alias for a single domain in virtualmin with the same result.

I'm using fcgi & suexec.

No idea what's wrong or how to go about fixing it. All help appreciated!