define('ROOT', '/path/to/lsroot/');
        require_once ROOT . 'application/libraries/jsonRPCClient.php';
        define( 'LS_USER', 'reporter' );
        define( 'LS_PASSWORD', 'verysecret' );
        // instantiate a new client
        $myJSONRPCClient = new JsonRPCClient( 'https://example.com/index.php/admin/remotecontrol' );
        // receive session key
        $sSessionKey = $myJSONRPCClient->get_session_key( LS_USER, LS_PASSWORD );
        echo $sSessionKey;