003+ Argument 2 passed to CallbackFilterIterator::__construct() must be callable, null given
004+ Argument 2 passed to CallbackFilterIterator::__construct() must be callable, array given
003- CallbackFilterIterator::__construct() expects parameter 2 to be a valid callback, no array or string given
004- CallbackFilterIterator::__construct() expects parameter 2 to be a valid callback, array must have exactly two members