_php_filter_validate_domain 511 ext/filter/logical_filters.c if (!_php_filter_validate_domain(Z_STRVAL_P(value), Z_STRLEN_P(value), flags)) { _php_filter_validate_domain 555 ext/filter/logical_filters.c if (!_php_filter_validate_domain(url->host, l, FILTER_FLAG_HOSTNAME)) {