codeigniter check for user session in every controller
Another option is to create a base controller. Place the function in the base controller and then inherit from this.
To achieve this in CodeIgniter, create a file called MY_Controller.php in the libraries folder of your application.
class MY_Controller extends Controller{ public function __construct() { parent::__construct(); } public function is_logged_in() { $user = $this->session->userdata('user_data'); return isset($user); }}
Then make your controller inherit from this base controller.
class X extends MY_Controller{ public function __construct() { parent::__construct(); } public function do_something() { if ($this->is_logged_in()) { // User is logged in. Do something. } }}
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();
You can achieve this using helper and CodeIgniter constructor.
You can create custom helper my_helper.php in that write your function
function is_logged_in() { $user = $this->session->userdata('user_data'); if (!isset($user)) { return false; } else { return true; }}
In controller if its login.php
class Login extends CI_Controller { public function __construct() { parent::__construct(); if(!is_logged_in()) // if you add in constructor no need write each function in above controller. { //redirect you login view } }