Is it possible to use extensions for Yii2 without using the framework itself?

Question

Yii

Is it possible to use extensions for Yii2 without using the framework itself?
Let's say I made a small site on a microframework, can I use Yii2 extensions in it?

Answer 1

As a rule, you can’t, they are built on Yii2, but you can port them.

Answer 2

Fully modular Symfony framework. Its components can be used in third-party applications. With Yii2, this is unlikely to be done.