dual_it_type     1450 ext/spl/spl_iterators.c static spl_dual_it_object* spl_dual_it_construct(INTERNAL_FUNCTION_PARAMETERS, zend_class_entry *ce_base, zend_class_entry *ce_inner, dual_it_type dit_type)
dual_it_type      139 ext/spl/spl_iterators.h 	dual_it_type             dit_type;