Before running programm in your system set codeigniter base url properly?

How to set proper codeigniter base url?

$config['base_url'] = "http://somesite.com/somedir/";

If using the URL helper, then base_url() will output the above string.

Passing arguments to base_url() or site_url() will result in the following (assuming
$config['index_page'] = "index.php";:

echo base_url('assets/stylesheet.css'); //http://somesite.com/somedir/assets/stylesheet.css

echo site_url('mycontroller/mymethod'); //http://somesite.com/somedir/index.php/mycontroller/mymethod