Question

i have asked the extended permission for user’s primary email address. but, i can’t find user’s email from decoded fb signed_request. how to get user’s email from new php sdk after user grants the extended permission for email address?

Answer 1

You should use something like:

$facebook->api('/me?fields=email');

And the result:

Array
(
    [email] => XXXXXXXXXXXXXXX
    [id] => 579187142
)

IMPORTANT NOTE: Facebook gives the user the choice NOT to give your application the real email! so you have to be careful about this!