how to detect if PHPSESSID is changed

Question

PHPSESSID Session Cookie

how to know if PHPSESSID is cahnged in the current session icouldn't find way to detect if this variable change is changes

as i want to check if the user has modfy the PHPSESSID or delete it (as deleteing it cause to create new one .)

and i can't save the value of this in session as all session are cleared when i delete PHPSESSID and aslo idont want to save it in session cookie

Answer 1

User (browser) can not change PHPSESSID, user can delete a cookie which stores session ID or modify URI parameter. Why would your users modify/delete their session ID?

Answer 2

maybe he don't want to lose data in session