用户退出注销操作

对于已经登录的用户进行注销操作，界面如下：

微信图片_20180227163122.png

点击注销进行session的销毁操作，清空session里的内容，销毁一个会话中的全部数据，销毁PHPSESSID与cookie的联系，操作成功界面如下：

微信图片_20180227163132.png

代码如下：

logout.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2018/2/27 0027
 * Time: 上午 11:44
 */
header('Content-type:text/html;charset=utf-8');
session_start();
if(isset($_SESSION['username'])){
//     var_dump(session_name());die();
    session_unset($_SESSION['username']);
    session_destroy();//销毁一个会话中的全部数据
    setcookie(session_name(),'');//销毁与客户端的联系
    echo "<script>alert('注销成功！');location.href='login.html';</script>";
}else{
    echo "<script>alert('注销失败！');</script>";
}

Weiter lernen

neue Datei

<?php /** * Created by PhpStorm. * User: Administrator * Date: 2018/2/27 0027 * Time: 上午 10:47 */ header('Content-type:text/html;charset=utf-8'); if ($_SERVER['REQUEST_METHOD'] == 'POST') { if (empty($_POST['username'])){ echo "<script>alert('用户名不能为空！');location.href='login.html';</script>"; }else { $username=$_POST['username']; } if (empty($_POST['password'])){ echo "<script>alert('密码不能为空！');location.href='login.html';</script>"; }else{ $password=$_POST['password']; } } $mysqli = new mysqli('localhost', 'root', 'root', 'student'); $result = $mysqli->query("SELECT password FROM user WHERE username = "."'$username'"); $rs=$result->fetch_row(); if (!empty($rs)){ if ($password != $rs[0]) { echo "<script>alert('密码错误！');location.href='login.html';</script>"; }else{ $expire=3600; ini_set('session.gc_maxlifetime', $expire);//保存1小时 if (empty($_COOKIE['PHPSESSID'])) { session_set_cookie_params($expire); session_start(); }else{ session_start(); setcookie('PHPSESSID', session_id(), time() + $expire); } if(isset($_SESSION['username'])){ exit("您已经登入了，请不要重新登入！用户名：{$_SESSION['username']}---<a href='logout.php'>注销</a>"); }else{ $_SESSION['username']=$_POST['username']; } echo "<script>alert('登录成功！');</script><br>"; echo "您好！{$_SESSION['username']},欢迎回来！"; echo "<a href='logout.php'>注销</a>"; } }else{ echo "<script>alert('没有此用户！');location.href='login.html';</script>"; }

einreichen Code zurücksetzen

Automatische Operation