note 76832 added to function.session-destroy

Destroying a session from a background job I have a thief-protection system that compares country codes from login IPs via whois. This has to run in the background as it is way too processor-hungry to be run in the browser. What I needed was a way to destroy the web session from the background job. For some reason, a background session_destroy APPEARS to work, but doesnt't actually destroy the web session. There is a work around, I set the username to NULL and the web code picks up on that, bouncing the user (thief) to a "gotcha" page where his IP is logged. Yes I know its nasty and dirty, but surprisingly it works. $sid = the session_id() of the suspicious web session, passed in $argv to the background job The trick is to "stuff" the $_GET array with the sid, then the session_start in the background job picks this value up (as if it were a genuine trans-sid type thing...?PHPSESSID=blah) and "connects to" the web session. All $_SESSION variable can be viewed (and CHANGED , which is how this kludge works) but for some reason (that no doubt someone will illuminate) they can't be unset...setting the particular variable to NULL works well though: $_GET[session_name()]=$sid; session_start(); // prove we are getting the web session data foreach($_SESSION as $k => $v) echo($k."=".$v); // now kill the thief $_SESSION['username']=NULL; //web session variable now NULL - honestly! ---- Server IP: 194.145.210.3 Probable Submitter: 81.156.118.149 ---- Manual Page -- http://www.php.net/manual/en/function.session-destroy.php Edit -- https://master.php.net/note/edit/76832 Del: integrated -- https://master.php.net/note/delete/76832/integrated Del: useless -- https://master.php.net/note/delete/76832/useless Del: bad code -- https://master.php.net/note/delete/76832/bad+code Del: spam -- https://master.php.net/note/delete/76832/spam Del: non-english -- https://master.php.net/note/delete/76832/non-english Del: in docs -- https://master.php.net/note/delete/76832/in+docs Del: other reasons-- https://master.php.net/note/delete/76832 Reject -- https://master.php.net/note/reject/76832 Search -- https://master.php.net/manage/user-notes.php