null_value        479 ext/dom/php_dom.c 						*null_value;
null_value        497 ext/dom/php_dom.c 	ALLOC_INIT_ZVAL(null_value);
null_value        498 ext/dom/php_dom.c 	ZVAL_NULL(null_value);
null_value        519 ext/dom/php_dom.c 			value = null_value;
null_value        538 ext/dom/php_dom.c 	zval_ptr_dtor(&null_value);