ID: 15884 Updated by: [EMAIL PROTECTED] Reported By: [EMAIL PROTECTED] -Status: Open +Status: Feedback Bug Type: Session related Operating System: Linux PHP Version: 4.1.2 New Comment:
To properly diagnose this bug, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Could you try to get backtrace? I guess PHP is segfaulting. Previous Comments: ------------------------------------------------------------------------ [2002-03-11 10:15:00] [EMAIL PROTECTED] Yup looks like the two are related. The other bug was submitted an Mar 6th, I submitted mine on Mar 5th so at least the dupe is not my fault ;) Jochen ------------------------------------------------------------------------ [2002-03-08 15:08:30] [EMAIL PROTECTED] I believe this bug is related to bug #15909 (http://bugs.php.net/bug.php?id=15909) ------------------------------------------------------------------------ [2002-03-06 12:25:09] [EMAIL PROTECTED] > You must provide short & complete script. > It sounds like your bug to me. Well this issue is very to reproduce so I thought providing a script wont be necessary. Anyway the following set of scripts will expose the bug. Please note that including the session handler will not be necessary if you are not running user-defined session handlers (php.ini setting) An explanation on how to use the scripts is below ----------------- file: include.php <? if (!$pgsql_session_table) include("/path/to/pgsql_session_handler.php"); session_start(); ?> ----------------- file: t1.php <? include("include.php"); $myvar = "hello"; session_register("myvar"); ?> <A HREF="t2.php">t2</A> ----------------- file: t2.php <? include("include.php"); echo "myvar: $myvar<BR>"; ?> <A HREF="t3.php">t3</A> ----------------- file: t3.php <? include("include.php"); session_unregister("myvar"); header("Location: t2.php"); ?> <A HREF="t2.php">t2</A> ----------------- Observed behaviour: t1 registers $myvar and displays link to t2. Follow this link t2 shows value of $myvar and displays link to t3. Follow this link t3 unregisters $myvar and uses header("Location: ") to redirect you to t2 t2 shows value of $myvar - it is still "hello" The behaviour in the last step is incorrect - since $myvar was unregistred, its value should have been deleted from the session but obiously is not When you comment out the line starting with "header" in t3.php and do the first two steps above and then click the link t3 shows $myvar will get unregistred properly. This is why the bug has the title "session_unregister does not work when followed by header("Location: ...")" btw: The reason for this is not the session-handler I use, php simply does not call the "pgsql_session_write" function if session_unregister is followed by a header("Location: ...") statement. best regards, Jochen ------------------------------------------------------------------------ [2002-03-06 03:04:01] [EMAIL PROTECTED] Not enough information was provided for us to be able to handle this bug. Please re-read the instructions at http://bugs.php.net/how-to-report.php If you can provide more information, feel free to add it to this bug and change the status back to "Open". You must provide short & complete script. It sounds like your bug to me. ------------------------------------------------------------------------ [2002-03-05 12:32:08] [EMAIL PROTECTED] When followed by a header("Location: ..."); statement session_unregister does not get properly executed. Reproduce: Take any script that has a session_unregister in it, put a header("Location: ...") under this statement, and see if unregistered var gets deleted from session-storage (it does not) Now put a session_write_close() in front of the header-statement and watch it work properly. If you have trouble reproducing this please don't hesitate to contact me. My setup: User-Defined Session-Handler: pgsql_session_handler latest version PHP compiled with: ./configure' '--with-mysql=/usr/local/mysql' '--with-pgsql' '--with-ldap' '--enable-trans-sid' '--with-gd' Exact same setup worked with php4.0.6, did not work after upgrade to 4.1.2 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=15884&edit=1
