如何访问 javascript 中的 laravel .env 变量？
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How to access the laravel .env variables inside javascript?
提问by Stephan-v
I am currently using Algolia for my search engine inside a Laravel application, so whenever a record is created it is also sent to the Agolia database. Of course I want to separate my data in the Algolia database with a testset for local development and a production set for the live website. I have defined which indices of my Algolia database are being used in a JavaScript file.
我目前在 Laravel 应用程序中使用 Algolia 作为我的搜索引擎，因此每当创建记录时，它也会发送到 Agolia 数据库。当然，我想将 Algolia 数据库中的数据与本地开发的测试集和实时网站的生产集分开。我已经定义了在 JavaScript 文件中使用了我的 Algolia 数据库的哪些索引。
Now I am wondering how do I react accordingly to my APP_ENV variable to change it depending on my current environment? Obviously I need to put stuff into an ifstatement in my JavaScript but how do I make my javascript access the .env variables properly?
现在我想知道如何根据我当前的环境对我的 APP_ENV 变量做出相应的反应来改变它？显然我需要if在我的 JavaScript 中放入一个语句，但是如何让我的 javascript 正确访问 .env 变量？
Hopefully somebody can help me out.
希望有人可以帮助我。
Cheers.
干杯。
回答by Agu Dondo
You can just echo out the env variable as a javascript string in your view:
您可以在视图中将 env 变量作为 javascript 字符串回显：
<script>
var name = '{{ env('NAME') }}';
alert(name);
</script>
And your .env file would look like this:
你的 .env 文件看起来像这样：
NAME=Alex
姓名=亚历克斯
回答by TimothePearce
As the documentation suggest it: you can now easily use envvariables by prefixing a key in your .env file with MIX_.
正如文档所暗示的那样：您现在可以env通过在 .env 文件中为键添加前缀来轻松使用变量MIX_。
MIX_SENTRY_DSN_PUBLIC=http://example.com
MIX_SENTRY_DSN_PUBLIC=http://example.com
After the variable has been defined in your .envfile, you may access via the process.envobject.
在.env文件中定义变量后，您可以通过process.env对象访问。
process.env.MIX_SENTRY_DSN_PUBLIC
process.env.MIX_SENTRY_DSN_PUBLIC
回答by simonw16
If accessing the env vars from outside of the main js file. You can do the following:
如果从主 js 文件之外访问环境变量。您可以执行以下操作：
let mix = require('laravel-mix');
require('dotenv').config();
then:
然后：
let my_env_var = process.env.MY_ENV_VAR;
Requiring mix and the dotenv config gives you access. :)
需要 mix 和 dotenv 配置才能访问。:)
回答by Alexey Mezenin
There are a lot of ways.
有很多方法。
One of the best is to pass data from Controller to the view:
最好的方法之一是将数据从 Controller 传递到视图：
if ($app->environment('local'))
{
// Here you can generate some <script></script> code or you could just generate
// hidden div like <div id="environment" style="display:none">local</div>
}
or like this:
或者像这样：
return view('myView')->with('env', $app->environment());
Or you could use Sessions:
或者你可以使用会话：
\Session::put('env', $app->environment())
Of course you can create dedicated route and get it with Ajax, but I don't think it's a good way to do this in real life web application.
当然，您可以创建专用路由并使用 Ajax 获取它，但我认为这不是在现实生活中的 Web 应用程序中执行此操作的好方法。
回答by TimothePearce
A cleaner solution is to use the laracasts/utilitiespackage to send your variables to your file.
更简洁的解决方案是使用laracasts/utilities包将变量发送到文件。
Install it with the composer require laracasts/utilitiescommand.
使用composer require laracasts/utilities命令安装它。
Then add use JavaScript;at the top of your controller.
然后use JavaScript;在控制器的顶部添加。
And finally send your variable this way : JavaScript::put([ 'foo' => $bar ]);.
最后发送您的变量是这样的： JavaScript::put([ 'foo' => $bar ]);。
