pnull_val         436 ext/interbase/ibase_query.c 	zval null_val, *pnull_val = &null_val;
pnull_val         441 ext/interbase/ibase_query.c 	ZVAL_NULL(pnull_val);
pnull_val         457 ext/interbase/ibase_query.c 				subval = pnull_val;