How to find user ID on facebook?

Question

Facebook

Hey! Is it now possible to find out the user ID on Facebook?
Previously, this method worked
. Now it only gives an error:

(#803) Cannot query users by their username (zuck)

Answer 1

Starting with API version 2.0, usernameit can no longer be used at all - which is why it gives an error. The only way to get access to FB user data is to authorize him in your application and use the endpoint /me. Well, you should definitely forget about Facebook users who have not authorized your application, their data can no longer be obtained in any way and this is due to the ubiquitous privacy. Good luck!)
If you do it without an API, then parse it here .