CodeIgniter: Can't Display data

Question

I am very new to CodeIgniter and I am using  v2.2.3. I managed to create the following code but I am unable to display the data.

Here is my Model

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

class Item_Model extends CI_Model {
      function __construct() {
        parent::__construct();
        
    }

    // Fetch data according to per_page limit.
    public function fetch_data($id) {
        $this->db->where('id', $id);
        $query = $this->db->get('items');
        if($query->num_rows()!==0)
        {
            return $query->result();
        }
        else
            return FALSE;
   }
}
?>

Here is my Controller

  function item()
  {
        if($this->session->userdata('logged_in'))
        {          
            $data["results"] = $this->item_model->fetch_data($id);       
            $session_data = $this->session->userdata('logged_in');
            $data['username'] = $session_data['username'];   
            $data['title'] = '';
            $this->load->view('inventory/item_view', $data);
         }
         else
         {
            $this->session->set_flashdata('message', 'Oops! You have to Login');
         //If no session, redirect to login page
            redirect('login', 'refresh');
         }
    }

I am unable to display data by getting the ID($id). It says that $id is undefined.

I hope anyone can help

Answer 1

Here In your controller's action add parameter you will get your data.

function item($id) {

    if($this->session->userdata('logged_in')) { 

            $data["results"] = $this->item_model->fetch_data($id);       
            $session_data = $this->session->userdata('logged_in');
            $data['username'] = $session_data['username'];   
            $data['title'] = '';
            $this->load->view('inventory/item_view', $data);
         } else {

            $this->session->set_flashdata('message', 'Oops! You have to Login');
         //If no session, redirect to login page
            redirect('login', 'refresh');
         }
    }