Session Class - Add, Edit and Remove

[eluser]webdude[/eluser]
thanks for the reply.

below is a cut down version of my page but i am unable to call/show $this->session->userdata('product');

Code:

<?php
    class Product_details  extends Controller {
    
        function productdetails()
        {
            $this->load->library('session');
            echo "session id = ".$this->session->userdata('session_id');
            echo "<br>";
            echo "product = ".$this->session->userdata('product');
            echo "<hr />";
        }
        
        function add()
        {
            $newdata = array('product' => 'test','code' => '001');
            $this->session->set_userdata($newdata);
        }
    
    }
?&gt;