Multiple Applications in CodeIgniter and Expression Engine running together

[eluser]Phil Sturgeon[/eluser]
The cleanest way (avoiding hacking EE Router) is to make a new application folder that sits next to your EE install. Then in your database.php just include('/path/to/ee/config/database.php');

Otherwise you are heading for a world of hurt. EE has extended the crap out of many of the core CodeIgniter libraries and it's really not a native CI application.