Again, Search Krumo can help. Let me show how it works. For example, we want to debug two objects:
$user = user_load(1);
sdpm($user); // user object
sdpm(menu_get_object()); // node object loaded with menu_get_object() function.
We will see something like this:
P.S.There is known bug with devel/php textarea: http://drupal.org/node/1696920. So, don't use sdpm() there.
