On Mar 14, 2007, at 10:08 AM, Khalid Baheyeldin wrote:

realpath() expands all symbolic links and resolves references to '/./', '/../' and extra '/' characters in the input path and return the canonicalized absolute pathname. The resulting path will have no symbolic link, '/./' or '/../' components.

The problem is, users are not keeping their modules in the Drupal directory. I need to give the script the path to the Drupal root directory, not the real path to itself. I would use a URL instead of a filesystem path, but I don't want to depend on users to configure PHP to allow this.