What happens if I never end session in php

Question

I'm curious about what will happen if I don't limit the session time out.

Will it affect the server?

is it considered as bad practice? if yes, why?

thank you. :)

Answer 1

There's a session garbage collector than normally runs periodically and cleans up old sessions. There are php.ini parameters that control how old a session has to be deleted.

How the PHP Session Garbage Collector Really Works