PHP会话管理图:
创建index:
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/7/2 * Time: 16:28 */ session_start();//启用session $_SESSION['name'] = 'Vito';//写session数据
创建a.php访问index.php的数据:
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/7/2 * Time: 16:35 */ session_start(); echo $_SESSION['name'];//访问index.php数据
修改index.php增加跳转:
header("Location:a.php");
访问index.php会跳转到a.php并输出Vito
销毁session
修改a.php增加判断:
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/7/2 * Time: 16:35 */ session_start(); //echo $_SESSION['name'];//访问index.php数据 //清除session数据 if(isset($_SESSION['name'])){ echo $_SESSION['name']; }else{ echo "No name found"; }
修改index.php增加session_destroy()
<?php /** * Created by PhpStorm. * User: Administrator * Date: 2015/7/2 * Time: 16:28 */ session_start();//启用session $_SESSION['name'] = 'Vito';//写session数据 session_destroy();//销毁session header("Location:a.php"); //echo session_id();//当前用户的sessionID;服务器端用sessionID标识每个客户端 //浏览器完全退出后,再次开启浏览器会得到一个不同的sessionID
访问index.php会得到No name found