Login And Logout Code In Codeigniter With Example

This tutorial You have learned how to log in and logout code in Codeigniter with how to set session in Codeigniter destroy session/logout.

# Login And Logout Code In Codeigniter With Example

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
  
class Auth extends CI_Controller {
  
     public function __construct()
        {
         parent::__construct();
         $this->load->model('Form_model');
             $this->load->library(array('form_validation','session'));
                 $this->load->helper(array('url','html','form'));
                 $this->user_id = $this->session->userdata('user_id');
        }
  
  
    public function index()
    {
     $this->load->view('login');
    }
    public function post_login()
        {
 
        $this->form_validation->set_rules('email', 'Email', 'required');
        $this->form_validation->set_rules('password', 'Password', 'required');
 
        $this->form_validation->set_error_delimiters('<div class="error">', '</div>');
        $this->form_validation->set_message('required', 'Enter %s');
 
        if ($this->form_validation->run() === FALSE)
        {  
            $this->load->view('login');
        }
        else
        {   
            $data = array(
               'email' => $this->input->post('email'),
               'password' => md5($this->input->post('password')),
 
             );
   
            $check = $this->Form_model->auth_check($data);
            
            if($check != false){
 
                 $user = array(
                 'user_id' => $check->id,
                 'email' => $check->email,
                 'first_name' => $check->first_name,
                 'last_name' => $check->last_name
                );
  
            $this->session->set_userdata($user);
 
             redirect( base_url('dashboard') ); 
            }
 
           $this->load->view('login');
        }
         
    }
    public function logout(){
    $this->session->sess_destroy();
    redirect(base_url('auth'));
   }    
   public function dashboard(){
       if(empty($this->user_id)){
        redirect(base_url('auth'));
      }
       $this->load->view('dashboard');
    }
}

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