VK - how to get the user ID of a user from an Iframe application?

Question

PHP

There is an Iframe application in Vkontakte, you need to get the user id from the application, tell me what methods can be used to organize this. Preferably in PHP.

Answer 1

No way.

Answer 2

You work with Iframe in js, and you can receive user data in js, and then pass this data to the backend
https://vk.com/pages?oid=-1&p=IFrame-%D0%BF%D1%80%.. https :
//vk.com/pages?oid=-1&p=%D0%9E%D0%BF%D0%B8%D...