在users表中，我将用户登录的时间存储在timestamp列中，数据类型是 int(11) . 我正在尝试检查哪些用户在过去60天内没有登录，并将他们重定向到重置密码页面。有人能帮我怎么做吗？
这是我的控制器：

public function login_user() {
    $this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean', 'required');
    $this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean', 'required');
    if ($this->form_validation->run() == FALSE) {
        $this->load->view('login_view');
    } else {
        $data = array(
            'username' => $this->input->post('username'),
            'password' => $this->input->post('password')
        );
        $result = $this->Login_model->login($data);
        $sessionres = $this->Login_model->sessionStore($data);

        if ($result == 1) {
            $userData = $this->Login_model->getUserData($data);
            $sessionArray = array(
                'is_logged' => TRUE,
                'user_name' => $data['username'],
                'first_name' => $userData['firstname'],
                'last_name' => $userData['lastname'],
                'userlevel' => $userData['userlevel'],
                'organisation_id' => $userData['organisation_id'],
                'user_id' => $userData['id'],
                'lastip' => $userData['lastip']

            );
            $this->session->set_userdata($sessionArray);
            redirect('dashboard');
        } else if ($result == 2) {
            $this->session->set_flashdata('message', 'Password seems to be wrong!');
            $this->load->view('login_view', $data);
        } else if ($result == 4) {
            $this->session->set_flashdata('message', 'Username is not active!');
            $this->load->view('login_view', $data);
        }else {
            $this->session->set_flashdata('message', 'Username not found!');
            $this->load->view('login_view', $data);
        }

    }
}