Facebook注册-隐藏字段不返回数据

Question

I have set up the facebook registration well, but I have problem with the hidden data. The initial file hae the following fields:

{'name':'name'},
{'name':'email'},
{'name':'location', 'description':'Location', 'type':'hidden'},
{'name':'gender', 'description':'Gender', 'type':'hidden'},
{'name':'birthday', 'description':'Birthday', 'type':'hidden'},
....

but when a proccess the signed_request I get the hidden field empty as the following:

[registration] => Array
 (
   [name] => Juan Perez
   [email] => jual@hotmail.com
   [location] => 
   [gender] => 
   [birthday] => 
   [password] => juan2013
   [phone] => 65656565
   [contacto] => 2
 )

Any idea what else need to be set up?

Answer 1

The issue may not be to do with your hidden fields. To access the user's location and birthday, additional permissions are required. Make sure you are asking the user for the correct permissions. Also, even with these permissions, the user may not have made this information public.