src/Http/Http.php
public function files($key = null, $name = null)
    {
        if (is_null($key)) {
            return $_FILES;
        }

        if (isset($_FILES[$key])) {
            if (! is_null($name)) {
                return $_FILES[$key][$name];
            }

            return $_FILES[$key];
        }

        return false;
    }
public function files($key = null, $name = null)
    {
        if (is_null($key)) {
            return $_FILES;
        }

        if (isset($_FILES[$key])) {
            if (! is_null($name)) {
                return $_FILES[$key][$name];
            }

            return $_FILES[$key];
        }

        return false;
    }
HTTP FILES Request

@param string $key
@param string $name

@return mixed