Question

我的应用程序有问题＆＃34;多用户可以记录同一个用户我需要防止这个问题我希望能帮到我我的代码：

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Login extends CI_Controller {
public function index()
{
    $posts = $this->input->post();
    $name  = $this->input->post('name');
    $pass  = $this->input->post('pass');   

    if(isset($posts['submit']))
    {
        $this->load->library('form_validation');

        $this->form_validation->set_rules('name', 'name ', 'trim|required');
        $this->form_validation->set_rules('pass', 'pass ', 'trim|required');    

        if($this->form_validation->run())
        {
            $this->load->model("users_model");
            $res = $this->users_model->auth($name,$pass); 
            if(!empty($res))
            {
                foreach($res as $r)
                { 
                    if($r->active == 0)
                    {
                        $err = '<h4 class="alert alert-danger"> error loggin

Answer 1

要确保用户未登录两次，您可以将会话存储在database中，然后在登录时检查用户是否已登录。如果是，请删除旧用户并允许登录或显示确认是否终止剩余会话的消息。我建议的是自动进行会话expire。

Answer 2

我的建议是更好地为登录编写单独的控制器。您的登录控制器应如下所示，

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Controllername extends CI_Controller {

    public function __construct()
    {
        parent::__construct();

        $this->load->model("users_model");

        if(!empty($this->session->userdata('userid');))
        {
            /*if any try to login again if they already logged in make them to redirect to 
               any other page you want*/
        }
    }

    public function login()
    {
        $this->load->library('form_validation');

        $this->form_validation->set_rules('name', 'name ', 'trim|required');
        $this->form_validation->set_rules('pass', 'pass ', 'trim|required');

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

            $res = $this->users_model->auth($name,$pass); 
            if(!empty($res))
            {
                //if the userdata matches then set the session while login

                $this->session->set_userdata('userid', $res[0]->userid );

               //after login redirect the user to where you want

            } 

         }
    }

}

通过检查会话是否为空它会阻止用户再次登录。每当用户尝试登录时，检查会话是否为空在构造函数中。如果会话不存在则通常会进入登录功能。如果会话已经设置，然后重定向到您想要的任何其他页面。

如何拒绝许多用户在codeigniter中使用相同用户登录？

2 个答案: