note 116569 added to recursivearrayiterator.haschildren

hasChildren() works as documented here, but not as its name suggests. The method does not return whether the current entry actually *has* children. It only returns whether the element's type is one that is able to have children. This is a bit counterintuitive if you are processing empty arrays. Example: <?php $data = array( "element one" => array(true), "element two" => array(), "element three" => array(true), ); $i = new RecursiveIteratorIterator(new RecursiveArrayIterator($data),RecursiveIteratorIterator::SELF_FIRST); foreach($i as $key => $value) { $type = gettype($value); $depth = $i->getDepth(); if($i->hasChildren()) { echo "$depth: $key ($type) has children\n"; } else { echo "$depth: $key ($type) has no children\n"; } } ?> Result: 0: element one (array) has children 1: 0 (boolean) has no children 0: element two (array) has children 0: element three (array) has children 1: 0 (boolean) has no children ---- Server IP: 72.52.91.14 Probable Submitter: 77.244.108.76 ---- Manual Page -- http://php.net/manual/en/recursivearrayiterator.haschildren.php Edit -- https://master.php.net/note/edit/116569 Del: integrated -- https://master.php.net/note/delete/116569/integrated Del: useless -- https://master.php.net/note/delete/116569/useless Del: bad code -- https://master.php.net/note/delete/116569/bad+code Del: spam -- https://master.php.net/note/delete/116569/spam Del: non-english -- https://master.php.net/note/delete/116569/non-english Del: in docs -- https://master.php.net/note/delete/116569/in+docs Del: other reasons-- https://master.php.net/note/delete/116569 Reject -- https://master.php.net/note/reject/116569 Search -- https://master.php.net/manage/user-notes.php