codeigniter check for user session in every controller

Question

I have this private session in one of my controllers that checks if a user is logged in:

function _is_logged_in() {

   $user = $this->session->userdat         


        

Answer 1

Put it in a helper and autoload it.

helpers/login_helper.php:

function is_logged_in() {
    // Get current CodeIgniter instance
    $CI =& get_instance();
    // We need to use $CI->session instead of $this->session
    $user = $CI->session->userdata('user_data');
    if (!isset($user)) { return false; } else { return true; }
}

config/autoload.php:

$autoload['helper'] = array('login');

Then in your controller you can call:

is_logged_in();