note 89572 added to ref.session

I'm fighting with a very strange session problem - maybe someone experienced somthing similar: at random times (sometimes after a few minutes, sometimes after a couple of hours) _all_ active sessions get cleared - the session-cookie is still active, and the session-file in /tmp still exists (but with a filesize of 0 bytes). this affects all sessions (regardless which php-program started it). i wrote a testscript, that does nothing but starting and reading a session-variable. this also gets cleared. my big question is: is it possible to accidentally kill sessions of other client-users from other programs in PHP? (the different scripts all run as the same server-user 'www'). i'd be grateful for any glue. thanks. ---- Server IP: 192.35.244.50 Probable Submitter: 85.125.204.122 ---- Manual Page -- http://www.php.net/manual/en/ref.session.php Edit -- https://master.php.net/note/edit/89572 Del: integrated -- https://master.php.net/note/delete/89572/integrated Del: useless -- https://master.php.net/note/delete/89572/useless Del: bad code -- https://master.php.net/note/delete/89572/bad+code Del: spam -- https://master.php.net/note/delete/89572/spam Del: non-english -- https://master.php.net/note/delete/89572/non-english Del: in docs -- https://master.php.net/note/delete/89572/in+docs Del: other reasons-- https://master.php.net/note/delete/89572 Reject -- https://master.php.net/note/reject/89572 Search -- https://master.php.net/manage/user-notes.php