note 125201 added to class.iterator

The "scalar" restriction on key() is no longer true. A simple example is that Generators can yield non-scalar keys. ---- Server IP: 45.112.84.4 Probable Submitter: 103.51.166.36 (proxied: 123.202.228.226) ---- Manual Page -- http://php.net/manual/en/class.iterator.php Edit -- https://master.php.net/note/edit/125201 Del: integrated -- https://master.php.net/note/delete/125201/integrated Del: useless -- https://master.php.net/note/delete/125201/useless Del: bad code -- https://master.php.net/note/delete/125201/bad+code Del: spam -- https://master.php.net/note/delete/125201/spam Del: non-english -- https://master.php.net/note/delete/125201/non-english Del: in docs -- https://master.php.net/note/delete/125201/in+docs Del: other reasons-- https://master.php.net/note/delete/125201 Reject -- https://master.php.net/note/reject/125201 Search -- https://master.php.net/manage/user-notes.php