    private static function isNonStandardPort($scheme, $host, $port)
    {
        if (!$scheme && $port) {
            return true;
        }

        if (!$host || !$port) {
            return false;
        }

        return !isset(static::$schemes[$scheme]) || $port !== static::$schemes[$scheme];
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.