note 107874 added to session.examples.basic

To add to the sagacious comment from anonymous at #107788, the $_SESSION array should be immutable until after session_start() has been executed successfully. But it is not. PHP will silently allow the script to put information into the "session" array even when the session has not been started. This is a source of frequent confusion, such as when a programmer accidentally omits session_start() or places session_start() inside a conditional logic structure. ---- Server IP: 192.41.42.26 Probable Submitter: 98.169.50.31 ---- Manual Page -- http://www.php.net/manual/en/session.examples.basic.php Edit -- https://master.php.net/note/edit/107874 Del: integrated -- https://master.php.net/note/delete/107874/integrated Del: useless -- https://master.php.net/note/delete/107874/useless Del: bad code -- https://master.php.net/note/delete/107874/bad+code Del: spam -- https://master.php.net/note/delete/107874/spam Del: non-english -- https://master.php.net/note/delete/107874/non-english Del: in docs -- https://master.php.net/note/delete/107874/in+docs Del: other reasons-- https://master.php.net/note/delete/107874 Reject -- https://master.php.net/note/reject/107874 Search -- https://master.php.net/manage/user-notes.php