为什么Laravel中有2个APP Key? .env和config/app.php [英] Why is there 2 APP Key in Laravel? .env and config/app.php

问题描述

我通过作曲家安装了Laravel 5，并在安装后自动生成了App Key.我转到了.env文件，在那里可以看到APP_KEY.但是，我还注意到config/app.php中还有另一个APP_KEY，如下所示:

I installed Laravel 5 via composer and after the installation the App Key was generated automatically. I went to .env file and I could see the APP_KEY there. However, I also noticed that there is another APP_KEY inside config/app.php like this:

'key' => env('APP_KEY', 'SomeRandomString'),
'cipher' => 'AES-256-CBC',

我的新手问题是:

1)为什么在两个不同的位置都有App键?

1) Why is there App keys in 2 different locations?

2)生成应用程序密钥时，为什么还不更新config/app.php文件?

2) When App Key was generated, why didnt it update the config/app.php file as well?

3)我是否还需要手动将.env应用程序密钥粘贴到config/app.php文件中，还是只要.env那里没有它是没有必要的?

3) Do I need to manually paste the .env App key into the config/app.php file too or will that be not necessary as long as .env has it there?

4)在将来的更新过程中，是否需要继续将App密钥添加到app.php文件中?意思是，它会在更新期间重置吗?

4) During future updates, do I need to keep adding the App key into app.php file? Meaning, would it get reseted during updates?

推荐答案

如果.env文件中没有值，则使用在config/app.php中设置的值.如果您已在.env文件中设置了应用程序密钥，则app.php中的第二个参数将被忽略.

The value set in config/app.php is used if there is no value in the .env file. If you have set the app key in the .env file, the second argument in app.php is ignored.

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