我已经将Laravel从5.6升级到6.0.以前，默认帮助器功能在控制器上运行良好，但现在显示为"undefined".在我的控制器中，我使用了以下内容.
$filename = str_random(12);
我收到以下错误.
message: "Call to undefined function App\Http\Controllers\str_random()"
I have also used the random() function, and it's saying the same thing.
有人能指导我做什么吗？
I have run commands like:
composer dump-autoload
But I get the same error.
Likelihood Of Impact: High Laravel 6 Upgrade Guide
In Laravel 6 All str_ and array_ helpers have been moved to the new laravel/helpers Composer package and removed from the framework. If desired, you may update all calls to these helpers to use the Illuminate\Support\Str and Illuminate\Support\Arr classes. Alternatively, you can add the new laravel/helpers package to your application to continue using these helpers:
composer require laravel/helpers
If don't want to add Package then Used Str And Arr Classes.
例如:
Str::random(12)