Question

当我的用户登录时，会更新last_active和last_visit宽度time()。

用户登录任何访问页面后，会更新用户 last_active 和 last_visit 列。

我正在尝试找出最佳方式，因此即使在不同的浏览器中，如果用户在线或不在线，也可以显示用户个人资料页面。

http://sample.com/user/1

我似乎无法正确理解。当用户已注销时，它仍然在其他浏览器中将用户显示为在线

问题即使用户，我该如何检查用户是否在线？不同的浏览器？

我看过How to see if a user is online in a website with php and mysql driven databases?

PHP Check if a user is online

这些链接无济于事。

if(date("H:i:s", $udata['last_active']) == date("H:i:s", $udata['last_visit']) && date("H:i:s", $udata['last_active']) != date("H:i:s", strtotime("+1 min"))) {
    $this->data['active'] = 1;
} else {
    $this->data['active'] = 0;
}

模型

<?php 

class User_model extends CI_Model {

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

        if ($this->islogged() == 1) {

            $this->db->where('user_id', $this->getuserid());
            $query = $this->db->get($this->db->dbprefix  . 'user_data');

            if ($query->num_rows() == 1) {

                $user_data = array(
                    'last_active' => time(),
                    'last_visit' => time(),
                    'ip_address' => $this->input->ip_address()
                );

                $this->db->where('user_id', $query->row()->user_id);
                $this->db->update($this->db->dbprefix . 'user_data', $user_data);
            }

        } else {

            $this->logout();
        }
    }

}

控制器

<?php

class User extends MY_Controller {

    public $data;

    public function __construct() {
        parent::__construct();
        $this->load->library('elapsed_time');
        $this->load->model('forum/thread_model');
        $this->load->model('user/user_model');
    }

    public function index($user_id) {
        $udata = $this->user_model->getuser($user_id);

        if ($udata) {

            // Titles
            $this->data['title'] = 'Profile of ' . $udata['username'];
            $this->data['heading_title'] = 'Forum Info';

            // Page Data
            $this->data['profile_username'] = $udata['username'];

            if(date("H:i:s", $udata['last_active']) == date("H:i:s", $udata['last_visit']) && date("H:i:s", $udata['last_active']) != date("H:i:s", strtotime("+1 min"))) {
                $this->data['active'] = 1;
            } else {
                $this->data['active'] = 0;
            }

            $this->data['how_long_was_online'] = 'Created account but not logged in yet!';
            $this->data['date_created'] = date('d-m-Y h:i:s' , $udata['date_created']);

            $this->data['avatar'] = ($udata['avatar']) ? $udata['avatar'] : 'holder.js/100px180';

            $this->data['total_questions'] = $this->thread_model->total_users_thread_questions($user_id);
            $this->data['total_threads'] = $this->thread_model->total_users_threads($user_id);

            // Page Links
            $this->data['users_questions'] = site_url('search/questions/' . $user_id);
            $this->data['users_threads'] = site_url('search/threads/' . $user_id);
            $this->data['pm'] = site_url('mail/pm/' . $user_id);
            $this->data['email'] = site_url('mail/email/' . $user_id);

            $this->data['children'] = array(
                'common/header',
                'common/footer',
                'common/navbar' 
            );

            $this->load->render('user/user', $this->data);

        } else {

            redirect('not_found');
        }
    }
}

检查用户是否在线codeigniter而不使用time（）而不使用会话

0 个答案: