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13f8760951
Years ago this was `void`, and I erroneously changed it to `scalar`. It will delegate to the sub-iterator's get_current_key handler, which can return any kind of zval. git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@346694 c90b9560-bf6c-de11-be94-00142212c4b1