note 125283 added to migration70.new-features

It is worth nothing that the following code just works in PHP 7.4: ``` function nullOrDefault($x = null) { $x ??= 3222; return $x; } ``` ---- Server IP: 45.112.84.4 Probable Submitter: 103.51.166.36 (proxied: 210.121.187.8) ---- Manual Page -- http://php.net/manual/en/migration70.new-features.php Edit -- https://master.php.net/note/edit/125283 Del: integrated -- https://master.php.net/note/delete/125283/integrated Del: useless -- https://master.php.net/note/delete/125283/useless Del: bad code -- https://master.php.net/note/delete/125283/bad+code Del: spam -- https://master.php.net/note/delete/125283/spam Del: non-english -- https://master.php.net/note/delete/125283/non-english Del: in docs -- https://master.php.net/note/delete/125283/in+docs Del: other reasons-- https://master.php.net/note/delete/125283 Reject -- https://master.php.net/note/reject/125283 Search -- https://master.php.net/manage/user-notes.php