Need help getting application base path

[eluser]dr.fux[/eluser]
Hello everybody

I just came over the same problem, an i realized, that it wasn't really one for me.

Correct me if I'm wrong, but for me it works just consider the base_path is just the working directory of the running CI script, beacause the index.php file is stored in that directory.

So why not consider

Code:

$base_path = "."

?

This would have the conclusion, that a subdirectory of the base_path could be accessed by something like that:

Code:

$images_dir = "images/"; //means http://www.urdomain.com/any_directory/images/

Are there any cases where the working directory of a CI application would change during system execution?

greets,
sniffer