Predefined Constants
The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
-
SID
(string)
-
Constant containing either the session name and session ID in
the form of
"name=ID"
or empty string
if session ID was set in an appropriate session cookie. This is
the same id as the one returned by session_id.
-
PHP_SESSION_DISABLED
(int)
-
Return value of session_status if sessions are disabled.
-
PHP_SESSION_NONE
(int)
-
Return value of session_status if sessions are enabled,
but no session exists.
-
PHP_SESSION_ACTIVE
(int)
-
Return value of session_status if sessions are enabled,
and a session exists.