What is the difference between session_create_id and session_regenerate_id()?

Question

Doc says

session_create_id() is used to create new session id for the current session. session_regenerate_id() Update the current session id wi

Answer 1

Yes there is a difference, session_create_id() will create a new sessionId discarding the current $_SESSION information, where as session_regenerate_id() doesn't destroys them, instead it just updates the sessionId

Referred from : http://php.net/manual/en/function.session-create-id.php & http://php.net/manual/en/function.session-regenerate-id.php