Codeigniter处理用户登录验证后URL跳转

涉及到My_Controller.php以及登录验证模块User.php，代码如下：

My_Controller.php

class MY_Controller extends CI_Controller

{

    public function __construct()

    {

        parent::__construct();

        /*判断是否登录，判断当前URL是否是auth/login*/

        if ( ! $this->tank_auth->is_logged_in()

                && ( $this->router->fetch_class() != 'auth' && $this->router->fetch_method() != 'login'))

        {

            $redirect = $this->uri->uri_string();

        

            if ( $_SERVER['QUERY_STRING'])

            {

                $redirect .= '?' . $_SERVER['QUERY_STRING'];

            }

            /*跳转到用户登陆页面，指定Login后跳转的URL*/

            redirect('auth/login?redirect='.$redirect);

        }    

    }

}

User.php

class User extends MY_Controller 

{

    function login()

    {



        if ($this->tank_auth->is_logged_in()) {                                    // logged in

            redirect('/');



        } else {

            //other codes here......

            /*判断是否有redirect信息*/

            $data['redirect'] = isset($_GET['redirect']) ? $_GET['redirect'] : '/';



            if ($this->form_validation->run()) {                                // validation ok

                if ($this->tank_auth->login(

                        $this->form_validation->set_value('login'),

                        $this->form_validation->set_value('password'),

                        $this->form_validation->set_value('remember'),

                        $data['login_by_username'],

                        $data['login_by_email'])) {                                // success

                    redirect($data['redirect']);



                } else {

                    //error handling

                }

            }

            $this->load->view("login_form")

        }

    }

/*

Note: 在login_form中需要注意，提交表单的form地址：

<?php echo form_open(site_url("/auth/login?redirect=".$redirect)); ?>

*/

}

在login_form中需要注意，提交表单的form地址：

<?php echo form_open(site_url("/auth/login?redirect=".$redirect)); ?>