uri_to_assoc not working

[eluser]jaswinder_rana[/eluser]
Hi:

I am using $this->uri->uri_to_assoc() but its not returning anything.

I need to get this rather than per segment because the order might change in my app.

Am I doing something wrong?

Please note that the uri class is included so its not error. It just returns empty Array (printed using print_r).

thanks