PHP_DATE_PERIOD_EXCLUDE_START_DATE 2100 ext/date/php_date.c 	REGISTER_PERIOD_CLASS_CONST_STRING("EXCLUDE_START_DATE", PHP_DATE_PERIOD_EXCLUDE_START_DATE);
PHP_DATE_PERIOD_EXCLUDE_START_DATE 4440 ext/date/php_date.c 	dpobj->include_start_date = !(options & PHP_DATE_PERIOD_EXCLUDE_START_DATE);