note 130482 added to migration80.deprecated

if a $_SESSION['example'] variable has not been set before being used, PHP version 7.4 just returned false, PHP 8.0 throws a PHP Warning: Undefined array key "example" ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.137 (proxied: 2a01:cb1d:9683:dc00:41bb:8918:79bc:54a8) ---- Manual Page -- https://php.net/manual/en/migration80.deprecated.php Edit -- https://main.php.net/note/edit/130482 Del: integrated -- https://main.php.net/note/delete/130482/integrated Del: useless -- https://main.php.net/note/delete/130482/useless Del: bad code -- https://main.php.net/note/delete/130482/bad+code Del: spam -- https://main.php.net/note/delete/130482/spam Del: non-english -- https://main.php.net/note/delete/130482/non-english Del: in docs -- https://main.php.net/note/delete/130482/in+docs Del: other reasons-- https://main.php.net/note/delete/130482 Reject -- https://main.php.net/note/reject/130482 Search -- https://main.php.net/manage/user-notes.php