note 110969 added to function.session-unset

There is nothing magical about the $_SESSION superglobal and unsetting it. One has simply to remember that all the session_* functions will use continue to use exactly that instance of array that was set up by session_start. Consider this example: <?php session_start(); var_dump($_SESSION); $a =& $_SESSION; unset($_SESSION); $a['x'] = 1; // $a refers to the original $_SESSION $_SESSION['x'] = 2; // new unrelated array session_write_close(); // saved session contains x => 1 ---- Server IP: 46.17.113.3 Probable Submitter: 82.210.166.126 ---- Manual Page -- http://php.net/manual/en/function.session-unset.php Edit -- https://master.php.net/note/edit/110969 Del: integrated -- https://master.php.net/note/delete/110969/integrated Del: useless -- https://master.php.net/note/delete/110969/useless Del: bad code -- https://master.php.net/note/delete/110969/bad+code Del: spam -- https://master.php.net/note/delete/110969/spam Del: non-english -- https://master.php.net/note/delete/110969/non-english Del: in docs -- https://master.php.net/note/delete/110969/in+docs Del: other reasons-- https://master.php.net/note/delete/110969 Reject -- https://master.php.net/note/reject/110969 Search -- https://master.php.net/manage/user-notes.php