Laravel 5.0，env()在并发请求期间返回null [英] Laravel 5.0, env() returns null during concurrent requests

问题描述

问题是，当我尝试使用env('setting')或\Config::get('setting')获取配置变量时，有时它返回null.

The problem is that when I try to get a config variable using env('setting') or \Config::get('setting'), sometimes it returns null.

出于测试的原因，我创建了一条简单的路线:

For the testing reason I created a simple route:

Route::get('/test', function () {
    $env = env('SETTING');
    if (!$env) {
        \Log::warning('test', [$env]);
    }
});

然后，我使用了Apache基准测试.结果是这样的:

Then I used apache benchmark. And the results were like this:

• 一次只调用一个请求(ab -n 100 -c 1 http://localhost/test)没问题，日志文件中没有记录
• 通过10个并发请求进行调用(ab -n 100 -c 10 http://localhost/test)，我得到大约20行，如下所示:[2015-06-22 14:19:48] local.WARNING: test [null]

• Calling only one request at a time (ab -n 100 -c 1 http://localhost/test) there were no problem, no records in the log file
• Calling with 10 concurrent requests (ab -n 100 -c 10 http://localhost/test) I got about 20 lines like this: [2015-06-22 14:19:48] local.WARNING: test [null]

有人知道，这可能是什么问题?我的配置或php设置中缺少某些内容吗?

Does anybody know, what can be the problem? Is there something missing in my configuration or in php settings?

推荐答案

这是dotenv程序包中的一个已知错误-参见此处的讨论 https://github.com/laravel/framework/issues/8191

This is a know bug in dotenv package - see the discussion here https://github.com/laravel/framework/issues/8191

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