class Cookie_hlp extends CI_Controller {
    function __construct()
    {
        parent::__construct();
         
        // Cookie Helper Load
        $this->load->helper('cookie');
        // Url Helper Load
        $this->load->helper('url');
    }
     
    function index() {
        $data['cookie'] = get_cookie('test');
        $this->load->view('cookie_hlp_sample', $data);
    }
     
    function set() {
        set_cookie('test', $this->input->post('user_data'), 3600);
        redirect('/cookie_hlp');
    }
     
    function del() {
        delete_cookie('test');
        redirect('/cookie_hlp');
    }
}