note 125709 added to functions.arrow

The variables in the enclosing scope captured by fn()'s body expression are ONLY the ones that it explicitly mentions, not every variable in the enclosing scope. <?php $inner = 42; $outer = 'inner'; $thunk_1 = fn($name) => $$name; $thunk_2 = fn() => $$outer; echo $thunk_1('inner'); echo $thunk_1($outer); echo $thunk_2(); ?> All of those calls will fail because $inner is undefined. ---- Server IP: 45.112.84.4 Probable Submitter: 101.0.109.162 (proxied: 125.239.154.159) ---- Manual Page -- http://php.net/manual/en/functions.arrow.php Edit -- https://master.php.net/note/edit/125709 Del: integrated -- https://master.php.net/note/delete/125709/integrated Del: useless -- https://master.php.net/note/delete/125709/useless Del: bad code -- https://master.php.net/note/delete/125709/bad+code Del: spam -- https://master.php.net/note/delete/125709/spam Del: non-english -- https://master.php.net/note/delete/125709/non-english Del: in docs -- https://master.php.net/note/delete/125709/in+docs Del: other reasons-- https://master.php.net/note/delete/125709 Reject -- https://master.php.net/note/reject/125709 Search -- https://master.php.net/manage/user-notes.php