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] paj...@php.net 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] ka...@php.net 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() ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=52982&edit=1