Fatal Error "Class 'Controller' not found" when extending core controller with new class in CodeIgniter

Question

I am facing a Fatal error:

Class 'Controller' not found in D:\wamp\www\CodeIgniter\application\controllers\blog.php on line 3

Always consult the current User Guide first: codeigniter.com/user_guide/general/controllers.html#what — No Results Found
– No Results Found, Commented Jun 7, 2011 at 19:34

Joris Ooms · Accepted Answer · 2011-06-07 18:49:30Z

4

Are you using CI 2.O? Did you by any chance write the following in your controller:

class Blog extends Controller { ... }

If you're using CI 2.0, you should use the following:

class Blog extends CI_Controller { ... }

You might have been watching outdated tutorials for CI 1.7.

Reference: http://codeigniter.com/user_guide/general/controllers.html

Make sure to follow the userguide along with whatever tutorials you're following; there's some changes in 2.0 which you should be aware of. You can still follow these tutorials though, just keep your eyes open and compare with the userguide.

edited Jun 7, 2011 at 18:49

answered Jun 7, 2011 at 18:42

Joris Ooms

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Damien Pirsy · Accepted Answer · 2011-06-07 18:43:31Z

1

What version are you using? if you're using the latest (2.0.2), make sure you use CI_Controller when extending your controller. Seeing you named the file blog.php, your controller should be looking like this

Class Blog extends CI_Controller {

 function index()
{
  // your code...
}

}

answered Jun 7, 2011 at 18:43

Damien Pirsy

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