public function validateLogin()
{
if ($this->session->userdata('is_logged_in') == 1) {
redirect('', 'refresh');
} else {
$data = array();
$this->load->model('Users_model');
$p = new Users_model();
$p->user_id = $this->input->post('user_id');
$p->password = $this->input->post('password');
$result = $p->checkUser();
if ($result == 0) {
redirect('', 'refresh');
echo mysqli_error($result);
} else {
$this->setSession();
}
}
}
