Can I access Codeigniter's config.php values outside of codeigntier?

[eluser]Colin Williams[/eluser]

The whole reason I’m not putting my PHP script in Codeigniter is because it’s a third party script that relies on $_GET and I don’t want to turn on query strings in Codeigniter.

Why not, exactly? Even with query string enabled, you can still use Clean URLs (using PATH_INFO or REQUEST_URI). I've done this for things like Facebook apps.