FOSUserBundle how to include salts? Why is a confirmation token needed?

Question

symfony

Greetings. Downloaded and installed FOSUserBundle.
I noticed that in the database salt = NULL, how to enable it? The documentation doesn't say.
Thought I was doing something wrong. I watched the lesson on YouTube in English, did the same, but the salts are still empty. He has included. Maybe different versions of FOS?
And why is the confirmation_token needed? It's also empty, by the way.
Thanks

Answer 1

Yes, these are different versions, but not FOS, but Symphony.
Now the salt is generated and stored along with the hash, using the password_hash() function.
Therefore, the contents of the salt field are currently ignored, and in the future, I think, will be removed.
By confirmation_token, I recommend checking after registration and before confirmation.
This field must be filled in only during this period, the rest of the time it must be empty.