note 125302 added to iterator.key

This function may return any type, not just scalar, for some Iterator types. In particular, it is very trivial to write a generator function that yields arbitrary keys: <?php function foo() { yield null => 1; yield new stdclass => 2; } ?> ---- Server IP: 45.112.84.4 Probable Submitter: 103.51.166.36 (proxied: 45.64.242.54) ---- Manual Page -- http://php.net/manual/en/iterator.key.php Edit -- https://master.php.net/note/edit/125302 Del: integrated -- https://master.php.net/note/delete/125302/integrated Del: useless -- https://master.php.net/note/delete/125302/useless Del: bad code -- https://master.php.net/note/delete/125302/bad+code Del: spam -- https://master.php.net/note/delete/125302/spam Del: non-english -- https://master.php.net/note/delete/125302/non-english Del: in docs -- https://master.php.net/note/delete/125302/in+docs Del: other reasons-- https://master.php.net/note/delete/125302 Reject -- https://master.php.net/note/reject/125302 Search -- https://master.php.net/manage/user-notes.php