accessing base class variable

[eluser]Armchair Samurai[/eluser]
You need to define your variables with the correct scope:

Code:

class MY_Controller extends CI_Controller {

    var $user_name = 'base class variable successfully accessed';

    //Other MY_Controller stuff....

}

Also, if you're using the 2.x branch, you'll need to put MY_Controller in the Core folder, not the Library.