How to implement user authorization using FOSUser with SMS confirmation in Symfony2?

Question

symfony

A session with the user is immediately created when entering the correct username and password, but I need to split the authorization into 2 steps:
entering the username and password,
entering SMS (if the data is correct in the previous step)

Answer 1

Here, there is an example .
Plus, this might help:
Overriding Default FOSUserBundle Controllers