These constants are defined for use in the CMS and extensions:
|DS||Directory separator. "/"|
|PATH_ROOT||The path to the current installation.|
|PATH_CORE||The path to the core framework of the CMS.|
|PATH_APP||The path to the app directory. This is where all a hub's data, custom code, and uploads will reside.|
Note: These paths are the absolute paths of these locations within the file system, NOT the path used in a URL.