Does rehashing a randomly salted password at login increase security?

Hello fellow programmers,

I am currently working on a project in php, and am wondering how to make my system as secure as currently possible. I am currently using password_hash to hash my passwords and then store them in my database. What I was wondering: Does rehashing and re-saving the new salted hash to the database increase security, or is that just an illusion?

Thank you for any input.

via Chebli Mohamed