get the facebook fanpage uid

Is it possible to retrieve the page_id of a fanpage on which 开发者_如何学Gomy application is installed?

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In the developer application select your app from the "My Applications" bar, and on the main page for your app you'll see the "Application ID". That's it.

The URL for your app's page is then http://www.facebook.com/apps/application.php, with your application id as the "id" parameter.