How to destroy the session in codeigniter?
error_reporting(0);
$this->load->view('index');
$this->load->database();
$this->load->library('session');
$this->load->helper(array('form','url'));
$email =$this->input->post("email");
$password =$this->input->post("password");
$stmt = $this->db->query("select * from tbl_employees where email='".$email."' and password='".$password."'");
$rowcount = $stmt->num_rows();
if($rowcount==1) {
foreach ($stmt->result() as $row)
{
$_SESSION['employee_id']=$row->employee_id;
$_SESSION['first_name']=$row->first_name;
$_SESSION['last_name']=$row->last_name;
print_r($_SESSION);
$this->session->sess_destroy();
redirect('Dashboard/dashboard_index');
$this->session->sess_destroy();
}