如果他没有登录你的应用程序，如何获得Facebook用户ID？

Question

I want the get a users facebook ID, but that user is not registered to my app.

I only want his ID to have a picture of him, but Can I even have his ID if he is not inside my app? ** the user is logged into facebook.

Thank you.

I'm using facebook php API.

Answer 1

Don't think so....................................

Try logging out of facebook (you), then visiting a user's profile. What do you see? Well that's all the information you can have without them "connecting" to your app.

Perhaps you can have your script check for their facebook cookie... good luck with that.