65.
When the session data is written to a file, it can be read back, decoded and applied to the current session using the . . . . function.

69.
No expiry date is set in the cookie that PHP sets for the session. The session remains current only as long as the browser is active. When the browser is restarted the cookie is not stored. This behavior can be changed by altering . . . . . setting in php.ini file.