How can I get a user's home country using the PHP facebook SDK

Question

So far I can get information about the user's hometown:

$userProfile = $this->_facebookRequest->getGraphObject(GraphUser::className());

Then I can extract out the page for their hometown (hometowns do not seem to be castable to GraphLocation):

$homeTownPageId = $userProfile->getProperty('hometown')->getProperty('id');

Then I can get that page:

$pageRequest = (new FacebookRequest($this->_facebookSession, 'GET', '/' . $homeTownPageId ))->execute();

Then I'm stuck. If you actually go to a location page, they look like this . Over on the top right you can see it clearly says 'United States'.

How can I extract out that information using the facebook SDK? I have tried casting the page to a GraphLocation and using getCountry but it doesn't work.

Answer 1

When you construct the login button (for example with <fb:login-button>) you must determine in "scope" attribute which fields do you plan to read. Some fields are public, some not.
For example if you want to rearch the hometown field you must use facebook button like here:

<fb:login-button autologoutlink="true" scope ="public_profile,email, user_hometown "></fb:login-button>

Parameters (permissions) used in " scope " are these:

PERMISSIONS : public_profile (Default), user_friends, email, user_about_me, user_actions.books, user_actions.fitness, user_actions.music, user_actions.news, user_actions.video, user_actions:{app_namespace}, user_activities, user_birthday, user_education_history, user_events, user_games_activity, user_groups, user_hometown, user_interests, user_likes, user_location, user_photos, user_relationships, user_relationship_details, user_religion_politics, user_status, user_tagged_places, user_videos, user_website

EXTENDED PERMISSIONS : read_friendlists, read_insights, read_mailbox, read_page_mailboxes, read_stream, manage_notifications, manage_pages, publish_actions, rsvp_event

See documentation: https://developers.facebook.com/docs/facebook-login/permissions/v2.2