From Facebook Developer Wiki

Perhaps note that, for use with the php libraries, the "list of property names that you want to view" should be an array so that is can be properly json encoded.

> So you're saying, the actual parameter sent to the server should take the form of a JSON-array, like "['application_name', 'callback_url', 'email', ...]" ?

$properties = array('application_name', 
		    'callback_url', 
		    'post_install_url', 
		    'edit_url', 
		    'dashboard_url',
		    'uninstall_url',
		    'ip_list', 
		    'email', 
		    'description', 
		    'use_iframe', 
		    'desktop', 
		    'is_mobile', 
		    'default_fbml', 
		    'default_column', 
		    'message_url', 
		    'message_action', 
		    'about_url', 
		    'private_install', 
		    'installable', 
		    'privacy_url', 
		    'help_url', 
		    'see_all_url', 
		    'tos_url', 
		    'dev_mode', 
		    'preload_fql');


admin_getAppProperties($properties);

What about the canvas_url? Can we have the ability to retrieve that as well?

The canvas url is simply: http://apps.facebook.com/[canvas_name]/

Will the Application Users ever be available? I have lost a large number of users for some of my apps. I would like to retrieve them, somehow.

What do you mean by "lost"? You can store the UIDs for any user that authorized your app, so you could call users.isAppUser to verify if they're still users. Pete (563683308 11:01, 8 September 2009 (PDT))

--41502060 15:56, 4 September 2009 (PDT)