Edit report at http://bugs.php.net/bug.php?id=52982&edit=1
ID: 52982
Comment by: php dot net at kenman dot net
Reported by: php dot net at kenman dot net
Summary: Expose php_session_active to userland via new
function (patch included)
Status: Assigned
Type: Feature/Change Request
Package: Session related
PHP Version: 5.3.3
Assigned To: kalle
Block user comment: N
New Comment:
pajoye,
I'm not sure if you understand which problem I'm trying to address here;
it's
not whether or not session_start() was successful, it's whether or not
there is
a current active session.
Many times, in frameworks or other large-scale applications, you have no
way of
knowing whether session_start() has already been called. You cannot rely
on
session_id(), SID, session_start(), $_SESSION, or any other session
functions or
session functionality (that I'm aware of) to tell me "yes, you already
have a
session open" or "no, you do not have a session open" _before_ I call
session_start().
Previous Comments:
------------------------------------------------------------------------
[2010-10-04 12:15:56] [email protected]
The notice is documented and can be disabled using the display error
settings. To detect whether or not session_start was successful, you
have to test its return value (as of 5.3.0).
It is actually a documentation problem as the examples in the manual
does not check the return values (maybe add one on top of them using
5.3+).
------------------------------------------------------------------------
[2010-10-04 10:31:43] [email protected]
If we are going to expose php_session_active, we might aswell expose the
other values. I will cook up a patch and apply it to trunk shortly
------------------------------------------------------------------------
[2010-10-04 04:45:37] php dot net at kenman dot net
Description:
------------
Attempting to start a session after a session has already been started
raises an
E_NOTICE, however, there is no sane way to check if a session has
already been
started. The only ways that I could devise were using the shut-up op (@)
or by
creating wrapper functions around all of the session functions.
This is extreme because there exists in the PHP source, code which can
do this; my
patch exposes this code for userland comsumption.
More info:
http://stackoverflow.com/questions/3788369/how-to-tell-if-a-session-is-active
Test script:
---------------
session_start();
// 1000's of lines of code, which may/may not have closed the session
session_start(); // how to tell if a session is active here?
Expected result:
----------------
Should be able to ask PHP whether or not it knows of an active session.
Actual result:
--------------
Notice: A session had already been started - ignoring session_start()
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=52982&edit=1
