(PHP 5 >= 5.4.0, PHP 7)
RecursiveCallbackFilterIterator::getChildren — Return the inner iterator's children contained in a RecursiveCallbackFilterIterator
Fetches the filtered children of the inner iterator.
RecursiveCallbackFilterIterator::hasChildren() should be used to determine if there are children to be fetched.
이 함수는 인수가 없습니다.
Returns a RecursiveCallbackFilterIterator containing the children.