$this->expiring = $cookie[2];
			$this->data     = $this->read( $this->id );

			// If the user has logged in, update the session data.
			$update_id = $this->maybe_update_id();

			// If the session is nearing expiration, update the session.
			$extend_expiration = $this->maybe_extend_expiration();

			// If either of these two items are true, the cookie needs to be updated.
			$set_cookie = $update_id || $extend_expiration;