remove id check when checking for started session

[mimmi20]

Q	A
Documentation	no
Bugfix	yes
BC Break	no
New Feature	no
RFC	no
QA	no

Fixes #97

Description

In Release 2.22.0 the check for the Constant SID was removed. This lead to the error that the Session could not be started when a session ID was set.

[mimmi20]

@froschdesign @gsteel There are two tests failing now (testSessionExistsReturnsTrueWhenSessionStartedThenWritten and testCallingWriteCloseShouldNotAlterSessionExistsStatus).

I dont unserstand why session_write_close shall not change the Session-exists-Status.

PHP's page states

session_write_close
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

session_write_close — Write session data and end session

[gsteel]

I dont unserstand why session_write_close shall not change the Session-exists-Status.

Closing the session persists the session data for the next request, it doesn't kill the session; There is still an active session once it has been written to storage.

To kill the active session, it must be destroyed with session_destroy() or $manager->destroy()

[gsteel]

The tests that now emit deprecations on 8.4 can be silenced by annotating the test with #[IgnoreDeprecations]