
static int php_date_interval_initialize_from_hash(zval **return_value, php_interval_obj **intobj, HashTable *myht TSRMLS_DC)
{
	(*intobj)->diff = timelib_rel_time_ctor();

#define PHP_DATE_INTERVAL_READ_PROPERTY(element, member, itype, def) \
	do { \
		zval **z_arg = NULL; \
		if (zend_hash_find(myht, element, strlen(element) + 1, (void**) &z_arg) == SUCCESS) { \
			convert_to_long(*z_arg); \
			(*intobj)->diff->member = (itype)Z_LVAL_PP(z_arg); \
		} else { \
			(*intobj)->diff->member = (itype)def; \
		} \
	} while (0);

#define PHP_DATE_INTERVAL_READ_PROPERTY_I64(element, member) \
	do { \
		zval **z_arg = NULL; \
		if (zend_hash_find(myht, element, strlen(element) + 1, (void**) &z_arg) == SUCCESS) { \
			convert_to_string(*z_arg); \
			DATE_A64I((*intobj)->diff->member, Z_STRVAL_PP(z_arg)); \
		} else { \
			(*intobj)->diff->member = -1LL; \
		} \
	} while (0);

	PHP_DATE_INTERVAL_READ_PROPERTY("y", y, timelib_sll, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("m", m, timelib_sll, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("d", d, timelib_sll, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("h", h, timelib_sll, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("i", i, timelib_sll, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("s", s, timelib_sll, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("weekday", weekday, int, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("weekday_behavior", weekday_behavior, int, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("first_last_day_of", first_last_day_of, int, -1)
	PHP_DATE_INTERVAL_READ_PROPERTY("invert", invert, int, 0);
	PHP_DATE_INTERVAL_READ_PROPERTY_I64("days", days);
	PHP_DATE_INTERVAL_READ_PROPERTY("special_type", special.type, unsigned int, 0);
	PHP_DATE_INTERVAL_READ_PROPERTY_I64("special_amount", special.amount);
	PHP_DATE_INTERVAL_READ_PROPERTY("have_weekday_relative", have_weekday_relative, unsigned int, 0);
	PHP_DATE_INTERVAL_READ_PROPERTY("have_special_relative", have_special_relative, unsigned int, 0);
	(*intobj)->initialized = 1;

	return 0;
Unknown