Laravel动态配置设置 [英] Laravel dynamic config settings

问题描述

我在项目中使用了一个程序包，它在config/packagename

I'm using a package within my project and it stores a setting inside config/packagename

我想在配置文件中动态更改此值，这是当前文件结构的样子；

I would like to dynamically change this value inside the config file, this is how the file structure looks currently;

<?php

return [
    'view_id' => '118754561',

    'cache_lifetime_in_minutes' => 60 * 24,
];

我想将其更改为这样的内容-

I would like to change it to something like this -

'view_id' => Auth::user()->id,

您可以在配置文件中执行此操作，还是必须存储某种变量以便稍后在控制器中进行更新.有没有办法将这些变量放在环境文件中并从控制器访问这些新变量?

Can you do this within the config file, or do you have to store some sort of variable to be updated later within a controller. Is there a way to place these variables in an env file and access these new variables from a controller?

推荐答案

这也是动态更新.env文件的通用解决方案(分别针对各个键/值对)

This also is a generic solution to dynamically update your .env file (respective the individual key/value pairs)

1. 像这样更改您的config/packagename中的设置:

return [
    'view_id' => env('VIEW_ID', '118754561'),
    etc...
]

1. 向.env中添加一个初始值:

1. Add an initial value into .env:

VIEW_ID = 118754561

VIEW_ID=118754561

在适当的控制器(例如AuthController)中，使用下面的代码并按如下所示调用函数: updateDotEnv('VIEW_ID', Auth::User()->id)

In an appropriate controller (e.g. AuthController), use the code below and call the function like this: updateDotEnv('VIEW_ID', Auth::User()->id)

protected function updateDotEnv($key, $newValue, $delim='')
{

    $path = base_path('.env');
    // get old value from current env
    $oldValue = env($key);

    // was there any change?
    if ($oldValue === $newValue) {
        return;
    }

    // rewrite file content with changed data
    if (file_exists($path)) {
        // replace current value with new value 
        file_put_contents(
            $path, str_replace(
                $key.'='.$delim.$oldValue.$delim, 
                $key.'='.$delim.$newValue.$delim, 
                file_get_contents($path)
            )
        );
    }
}

(如果要使此函数更通用，以便与.env中的key = value对配合使用，则需要使用$ delim参数，其中值必须包含在双引号中，因为它们包含空格).

(The $delim parameter is needed if you want to make this function more generic in order to work with key=value pairs in .env where the value has to be enclosed in double quotes because they contain spaces).

诚然，如果您同时有多个用户在项目中使用此软件包，那么这可能不是一个好的解决方案.因此，这取决于您使用此软件包的目的.

Admittedly, this might not be a good solution if you have multiple users at the same time using this package in your project. So it depends on what you are using this package for.

注意:如果您打算从其他类中使用该函数，则当然需要将该函数公开.

NB: You need to make the function public of course if you plan to use it from other classes.

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