How to create your own helper functions in Laravel 8?

Hello everyone! I'm new to Laravel (version 8) and trying to figure out how to create custom helper functions. Built-in functions like `str_slug()` or `route()` work great, but I need to add my own. Situation: in my project, I often format dates and prices. In every controller, I have to write the same code: ```php // Price formatting $price = number_format($product->price, 2, ',', ' '); // Date formatting $date = Carbon::parse($product->created_at)->format('d.m.Y'); ``` This is extremely annoying. I want to make something like `formatPrice($value)` and `formatDate($date)` so I can call them anywhere — in controllers, models, Blade templates. I tried simply creating a file `app/helpers.php` and writing functions there. They work in controllers, but in Blade templates they throw