Changed the example appId to an app named "You Forgot to use your own AppID and Secret". Hopefully this will clear up some confusion.

ptarjan · ptarjan · commit 54acf92444c8 · 2011-08-07T04:40:51.000-07:00
diff --git a/examples/example.php b/examples/example.php
@@ -19,8 +19,8 @@
 
 // Create our Application instance (replace this with your appId and secret).
 $facebook = new Facebook(array(
-  'appId'  => '117743971608120',
-  'secret' => '943716006e74d9b9283d4d5d8ab93204',
+  'appId'  => '191149314281714',
+  'secret' => '73b67bf1c825fa47efae70a46c18906b',
 ));
 
 // Get User ID
