note 50701 added to ref.session

I am looking for function which will allow me to delete a session file according to loginname or userid stored in it. Can you help me? ---- Manual Page -- http://www.php.net/manual/en/ref.session.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+50701 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+50701&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+50701&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+50701&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+50701&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+50701&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+50701&report=yes Search -- http://master.php.net/manage/user-notes.php