How does the Session-Library work if cookies are rejected by the browser?

If cookies are accepted by the browser everything works well. But if cookies are rejected by the browser it doesn’t work.

With the following PHP-settings in case of rejected cookies the session-id should be attached to the URL. I tried it with the native PHP-command session_start() and it works (http://localhost/ /read.php?PHPSESSID=db06i2694i0tfbf80h39jm8fd0).

Many thanks in advance.

PHP-settings:
session.use_cookies
On
session.use_only_cookies
Off
session.use_strict_mode
Off
session.use_trans_sid
1