session_destroy 不会取消设置 session_id [英] session_destroy not unsetting the session_id

问题描述

我正在开发一个在线订票系统，在成功预订(付款后)后，我想清除会话 ID.但问题是我无法清除它，尽管我已经使用 session_destroy() 来销毁会话.

I am working on an online ticket booking systems where after making successful booking(after payment) I want to clear the session id. But the thing is I am not able to clear it although I have used session_destroy() to destroy the session.

注意:我已经回显 session_id 以检查它是否重置.

NB: I have echoed the session_id to check if its reset or not.

网址:http://7sisters.in/7sislabs/

function book_final_tickets()
{

    //var_dump($_SESSION);
    $session_id = session_id();


    $sql = "
        UPDATE
            tbl_seat_book
        SET
            final_book = 'Y'
        WHERE
            session_id = '$session_id'
    ";


    //session_unset();

    if($r = $this->db->executeQuery($sql)){
        if(session_destroy()){
            unset($session_id); 
            echo 'Booking successfull';
        }
    }
}

推荐答案

在session_start之前调用session_id，手动设置session_id.

Call session_id before session_start, and set session_id manually .

示例 1:将使用相同的 session_id

<?php
session_start();

echo session_id(); //4ef975b277b52

session_destroy();

session_start();

echo session_id();  //4ef975b277b52
?>

示例2:手动设置session_id(在session_start()之前调用)

Example 2: set session_id manually (called before session_start())

<?php
session_id(uniqid()); 
session_start();

echo session_id(); //4ef975d3d52f5  (A)

session_destroy();


session_id(uniqid());
session_start();

echo session_id();  //4ef975d3b3399 (B)
?>

(A) != (B)，所以你可以手动设置 session_id，参见 http://php.net/manual/en/function.session-id.php 了解更多信息.

(A) != (B), so you can set session_id manually, see http://php.net/manual/en/function.session-id.php for more information.

另一种解决方案，不要使用 session_id() ，只需创建新的会话数组:

Another solution, dont use session_id() , just create new session array:

<?php
$_SESSION['booked'] = false;

if($r = $this->db->executeQuery($sql))
{
    $_SESSION['booked'] = true;
    echo 'Booking successfull';
}
?>

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