And where is the database of paid libraries in php?

Question

PHP

Hello everyone
If you look at .net, then there is a fairly typical model for monetizing your work - this is the sale of your own libraries that solve certain problems. Plus, they can be modified according to customer requirements.
Is there a site somewhere that offers paid libraries in PHP? I would like to understand whether people are ready and not ready to pay for them, and what is generally in use.