Hello world with Codeigniter

There are simply two processes to view the Hello world page by changing the default Welcome Page.

Process 1: (Simple)

                Under the class Welcome there is a function named index (). Under the function index () just type echo 'Hello World!'; So the controller welcome will be (the directory: …/xampp/htdocs/mysite/application/controllers/welcome.php)

class Welcome extends CI_Controller
{
public function index()
                {
                                $this -> load ->view('welcome_message');
                }
}

The Output is:

Process 2: (Simple)

                Create a Controller name as you wish. For example: hello.php and put the following code in it.

Now type http://localhost/mysite/index.php/hello in the address bar of your favorite browser.

It will display: