PHP Problem?

On a wordpress site, functions.php isn't working correctly on my build, but works fine on the dev's build. Both of us using php 5.2.17, but on mine there's errors.

When I remove theme options from functions.php instead of displaying site, it outputs whole PHP file raw. That shouldn't happen. Did I miss something simple in php.ini?

Hello,

You might need to enable error displaying in WP (or/and php.ini) and see what is wrong there. And/or check logs...