Why doesn't Laravel need to include third party class files?

Question

PHP

I don't know much about PHP, and in order to use a class from another file, this file must first be included (include or require). I'm learning Laravel, here, for example, to use a facade, it's enough to use the class namespace: use Illuminate\Support\Facades\Cache;
I don't understand how this works?

Answer 1

class autoload.
https://www.php.net/manual/ru/language.oop5.autolo...
https://www.php-fig.org/psr/psr-4/
https://getcomposer.org/doc/ 01-basic-usage.md#auto...