User exits logout operation
For logged-in users, the interface is as follows:
Click logout to destroy the session and clear the session. content, destroy all data in a session, and destroy the connection between PHPSESSID and cookies. The successful operation interface is as follows:
##The code is as follows:
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>";
}