Codeigniter 2.1.3：sess_destroy（）导致未定义的索引：session_id etc当'sess_use_database'== TRUE时 [英] Codeigniter 2.1.3: sess_destroy() causes Undefined index: session_id etc notice when 'sess_use_database' == TRUE

问题描述

我已经测试出使用数据库的会话的codeigniter的功能，当我注销（使用sess_destroy（）），我得到以下通知：

I have been testing out the codeigniter's feature with sessions using database, and when ever I log out (use sess_destroy()) i get the following notices:

            A PHP Error was encountered

            Severity: Notice

            Message: Undefined index: session_id

            Filename: libraries/Session.php

            Line Number: 272
            A PHP Error was encountered

            Severity: Notice

            Message: Undefined index: ip_address

            Filename: libraries/Session.php

            Line Number: 272
            A PHP Error was encountered

            Severity: Notice

            Message: Undefined index: user_agent

            Filename: libraries/Session.php

            Line Number: 272
            A PHP Error was encountered

            Severity: Notice

            Message: Undefined index: last_activity

            Filename: libraries/Session.php

            Line Number: 272
            A PHP Error was encountered

            Severity: Notice

            Message: Undefined index: session_id

            Filename: libraries/Session.php

            Line Number: 288
            A PHP Error was encountered

            Severity: Notice

            Message: Undefined index: last_activity

            Filename: libraries/Session.php

            Line Number: 289

我需要做什么来解决这个问题？ （我知道我可以关闭错误报告等，但我更感兴趣的是为什么会发生这种情况，如何解决它）。

What do I need to do to fix that? (I know that I can turn off error reporting ect, but I am more interested to why this happens and how to fix it).

我用这个来创建表：

I used this to create the table:

                CREATE TABLE IF NOT EXISTS  `ci_sessions` (
                        session_id varchar(40) DEFAULT '0' NOT NULL,
                        ip_address varchar(45) DEFAULT '0' NOT NULL,
                        user_agent varchar(120) NOT NULL,
                        last_activity int(10) unsigned DEFAULT 0 NOT NULL,
                        user_data text NOT NULL,
                        PRIMARY KEY (session_id),
                        KEY `last_activity_idx` (`last_activity`)
                );

会话库是自动加载的。

推荐答案

这是导致您的问题，与2.1.3版本：

This is causing your problem, with the release of 2.1.3:

修复了一个错误＃1314） - 会话库方法sess_destroy（）没有销毁userdata数组。

Fixed a bug (#1314) - Session Library method sess_destroy() didn't destroy the userdata array.

$ this-> tank_auth-> logout ）包含函数sess_destroy（）;
所以在你调用这个，你不能使用set_flashdata（）在$ this - > _ show_message（）。

$this->tank_auth->logout() contains the function sess_destroy(); So after you have called this, you cannot use set_flashdata() in $this->_show_message().

你需要做的是创建一个新会话。这是auth.php中您的注销方法应该是什么样子：

What you need to do is create a new session. This is how your logout method should look like in auth.php:

/**
 * Logout user
 *
 * @return void
 */
function logout() {
    $this->tank_auth->logout(); // Destroys session
    $this->session->sess_create();
    $this->_show_message($this->lang->line('auth_message_logged_out'));
}

这篇关于Codeigniter 2.1.3：sess_destroy（）导致未定义的索引：session_id etc当'sess_use_database'== TRUE时的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！