I used the code below to get the object's property _items:protected, but no luck.
$obj = JSite::getMenu();
print_r($obj->_items:protected);
Object output
JMenuSite Object
(
    [_items:protected] => Array
        (
            [101] => stdClass Object
                (
                    [id] => 101
                    [menutype] => mainmenu
Anyone know what wrong with my code? Thanks.
 
    