Redirect to previous page using codeigniter

Question

I have a login form with URL

index.php/Login

after login it shows me home page with same URl because i have called the view in index function of login controller. Now problem is when i click change password button it redirects to

index.php/Login/change_password

now if i called site_url('Login') from change_password, it redirects me to login page but not back to user home page.

my Login controller code id below

  public function index(){

       $this->load->helper(array('form', 'url'));
        $this->load->library('form_validation');
        $this->load->database();

        $this->form_validation->set_rules('email', 'Email', 'required|valid_email');
        $this->form_validation->set_rules('password', 'Password', 'required');

        if($this->form_validation->run() == FALSE){

            $this->load->view('login');

        }
        else
        {

            $this->load->model('user_data');
            $email = $this->input->post('email');
            $data['info'] = $this->user_data->login_user($email,  $this->input->post('password'));
            $this->load->library('session');
            $user = $data['info'];
            $this->session->set_userdata($user);
            $this->load->view('employee_main');

        }

Any help will be greatly appricated.

Answer 1

try to use session

first change:-

$this->session->set_userdata($user);

to

$this->session->set_userdata('myuser_session', $user); //giving a name to detect

Then check session is exist

public function index(){
  $this->load->library('session');
  if($this->session->userdata('myuser_session')) {
    redirect(site_url());
  }

Answer 2

要重定向回首页，请尝试：

redirect(site_url());