未定义变量：$ _SESSION [英] Undefined variable: $_SESSION

问题描述

当我尝试引用一个永不设置或未设置的会话（ cake / libs /）时，核心CakePHP文件中会出现 E_NOTICE cake_session.php line 372 ）：

I'm getting E_NOTICE errors in a core CakePHP file when it tries to reference a never-set or unset session (cake/libs/cake_session.php line 372):

function read($name = null) {
    if (is_null($name)) {
        return $this->__returnSessionVars();
    }
    if (empty($name)) {
        return false;
    }
    $result = Set::classicExtract($_SESSION, $name);
}

我通过我的代码（在app /目录中）我找不到对 $ _ SESSION 或 session_destroy 的引用。我缺少任何东西？

I've done a search through my code (in the app/ directory) and I can't find references to $_SESSION or session_destroy. Am I missing anything?

当我尝试运行任何单元测试时，显示此错误。这是正常吗？我清除了 cake / 目录，并用另一个（同一版本）替换它，以确保我没有无意中修改了核心文件中的任何内容，但是我仍然得到相同的错误。我不确定这是否只是框架中的缺陷或其他问题。

This error shows up when I try to run any unit tests. Is this...normal? I've cleared out the cake/ directory and replaced it with another one (same version) just to make sure that I hadn't inadvertently modified anything in the core files, but I still get the same error. I'm not sure if this is just a flaw in the framework or something else.

EDIT

以下是在命令行上运行测试的结果：

Here are the results of the test run on the command line:

Welcome to CakePHP v1.3.11 Console
---------------------------------------------------------------
App : app
Path: /var/www/program/app
---------------------------------------------------------------
CakePHP Test Shell
---------------------------------------------------------------
Running app case models/owners_equity
E_NOTICE: Undefined variable: _SESSION in /var/www/program/cake/libs/cake_session.php on line 372
E_NOTICE: Undefined variable: _SESSION in /var/www/program/cake/libs/cake_session.php on line 372
ERROR->Unexpected PHP error [Undefined variable: _SESSION] severity [E_NOTICE] in [/var/www/program/cake/libs/cake_session.php line 372]
    in testGenerateOwnerWithdrawals
    in BalanceTestCase
    in /var/www/program/app/tests/cases/models/owners_equity.test.php

ERROR->Unexpected PHP error [Undefined variable: _SESSION] severity [E_NOTICE] in [/var/www/program/cake/libs/cake_session.php line 372]
    in testGenerateOwnerWithdrawals
    in BalanceTestCase
    in /var/www/program/app/tests/cases/models/owners_equity.test.php

推荐答案

正在混乱的AppModel：

Turned out there was some extra code in the AppModel that was messing things up:

在 beforeFind 和 afterFind ：

App::Import("Session");
$session = new CakeSession();
$sim_id = $session->read("Simulation.id");

我不知道为什么，但那是什么问题。删除这些行解决了我遇到的问题。

I don't know why, but that was what the problem was. Removing those lines fixed the issue I was having.

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