note 97045 added to recursiveiteratoriterator.construct

In a constructor signature there's stated that it takes Traversable object. But when I'm passing ArrayIterator object there, it throws an exception saying that: 'An instance of RecursiveIterator or IteratorAggregate creating it is required'. If so, why don't state it directly in the signature? E.g.: __construct ( RecursiveIterator $iterator [, int $mode = LEAVES_ONLY [, int $flags = 0 ]] ) ---- Server IP: 69.147.83.197 Probable Submitter: 83.10.79.59 ---- Manual Page -- http://www.php.net/manual/en/recursiveiteratoriterator.construct.php Edit -- https://master.php.net/note/edit/97045 Del: integrated -- https://master.php.net/note/delete/97045/integrated Del: useless -- https://master.php.net/note/delete/97045/useless Del: bad code -- https://master.php.net/note/delete/97045/bad+code Del: spam -- https://master.php.net/note/delete/97045/spam Del: non-english -- https://master.php.net/note/delete/97045/non-english Del: in docs -- https://master.php.net/note/delete/97045/in+docs Del: other reasons-- https://master.php.net/note/delete/97045 Reject -- https://master.php.net/note/reject/97045 Search -- https://master.php.net/manage/user-notes.php