Help with beginner login questions

Code:

&lt;?php

 

class MY_Controller extends Controller {

    

    function _admin_restricted_area()

    {

        if (! $this->auth->isAdmin())

        {

            show_404();

        }

    }

    

    function _user_restricted_area()

    {

        if (! $this->auth->isLoggedIn())

        {

            redirect('/forums/member/login');

        }

    }    

}



// End of file: MY_Controller.php

// ./system/application/libraries/MY_Controller.php

Code:

&lt;?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');



/*



    The Welcome class serves as the home page.

    Users can choose to 'Get Started' which will walk them through the process of creating their account and ordering itmes

    Or they can choose to 'Login' if they have already ordered some items





*/





class Welcome extends Controller {



    function __construct()

    {

        parent::Controller();

        

        $this->load->helper(array('form', 'url'));                

        $this->load->library(array('form_validation'));

        

        // Customize the tags that wrap arround the form validation error messages

        $this->form_validation->set_error_delimiters('<div class="error">', '</div>');

    }

    

    function index()

    {

        // Check if the form is being submitted. If it is, run validation

        // Find Validation Rules in '/system/application/config/form_validation.php'

        // Rules are named after their class and method, ex. order/index

        if ($this->input->post('submit') && $this->form_validation->run() === TRUE)

        {

            // If the validation has passed, redirect to the next step            

            // log user in - display session data so I know it's working

            $this->authentication->login($this->input->post('user_email'), $this->input->post('user_password'));

            redirect('welcome');



            // send them on to the order page

            redirect('/welcome/');

            

        } else if ($this->input->post('submit') && $this->form_validation->run() === FALSE)

        {

            // The form has been submitted and there are errors

            $data['title'] = "Oops! Let's double check that form.";

            $data['heading'] = "Oops! Let's double check that form.";

        } else

        {

            // The form has never been submitted, first time visitor here

            $data['title'] = "Order Flyers, Postcards, Banners, and More :: NBT Supplies";

            $data['heading'] = "Welcome";

        }

                

        // Load this view by default

        $this->load->view('welcome_index', $data);

    }

    

    function logout()

    {

        $this->authentication->logout();

        

        $data['title'] = "Logged Out";

        $data['heading'] = "You have been logged out.";

        

        // Load this view by default

        $this->load->view('welcome_index', $data);

    }

    

}



/* End of file welcome.php */

/* Location: ./system/application/controllers/welcome.php */