Building Codeigniter URLs with variable segments

[eluser]InsiteFX[/eluser]

Code:

------------- Segments    1          2          3            4
http://www.mysite.com/[outlets]/[city_name]/[area_name]/[outlet_name].

// outlets controller
public function index()
{
    // NOTE: The second parameter 0 is a default value.
    $city_name   = $this->uri->segment(2, 0);
    $area_name   = $this->uri->segment(3, 0);
    $outlet_name = $this->uri->segment(4, 0);
}

By default it will return FALSE if the segment is empty.

CodeIgniter Users Guide - URI Class