CSRF state token does not match one provided FB PHP SDK 3.1.1 Oauth 2.0

Question

My server logs show a \"CSRF state token does not match one provided\" error which seems to happen for almost every user. However, the users are created and/or authenticated

Answer 1

CSRF state and code are checked using local sessions, I bet you need to check your session.save_handler in your php.ini, and if it was working properly.