Ip\Request::getServer PHP Method

Return parameters, such as headers, paths, and script locations, provided in $_SERVER array

public getServer ( string $name = null, string $default = null ) : mixed
$name	string	parameter name
$default	string	default value returned when a server parameter is null
return	mixed

    public function getServer($name = null, $default = null)
    {
        return $this->getParam($name, $this->_SERVER, $default);
    }

Request