Get User Home town And Current Location

Question

I am using the following script from facebook example:

The script grabs the e-mail fine but hometown and location trigger a 500 error on my server. I need to grab the data for statistics.

<?php 

$app_id = "API_ID_GOES_HERE";
$app_secret = "SECRET_GOES_HERE";
$my_url = "REDIRECT_URL_GOES_HERE";
$permissions ="user_hometown,user_location,email";

session_start();
$code = $_REQUEST["code"];

if(empty($code)) {
 $_SESSION['state'] = md5(uniqid(rand(), TRUE)); //CSRF protection
 $dialog_url = "http://www.facebook.com/dialog/oauth?client_id=" 
. $app_id . "&redirect_uri=" . urlencode($my_url) . "&scope=".$permissions. 
  "&state="
   . $_SESSION['state'];

 echo("<script> top.location.href='" . $dialog_url . "'</script>");
  }

if($_REQUEST['state'] == $_SESSION['state']) {
 $token_url = "https://graph.facebook.com/oauth/access_token?"
   . "client_id=" . $app_id . "&redirect_uri=" . urlencode($my_url)
   . "&scope=".$permissions. "&client_secret=" . $app_secret . "&code=" . $code;

 $response = file_get_contents($token_url);
 $params = null;
 parse_str($response, $params);

 $graph_url = "https://graph.facebook.com/me?access_token=" 
   . $params['access_token'];

 $user = json_decode(file_get_contents($graph_url));

 echo("Hello " . $user->name);
 echo ("Location ". $user->location);


}
else {
  echo("The state does not match. You may be a victim of CSRF.");
}

?>

Answer 1

I found the answer. Using this $user->hometown->name Will get the Hometown array and the Name object.

EX. [hometown] => stdClass Object ( [id] => 111806898837603 [name] => San Antonio, Texas )

$user->hometown->name  

OUTPUT:

San Antonio, Texas

Answer 2

I would take the URLs you are creating to get the user info off the graph api (i.e. $graph_url) and paste them into your browser to inspect the data facebook is returning, and go from there. If the URL's are returning proper information, then you know you are getting the right data back. Use the Graph API Explorer (https://developers.facebook.com/tools/explorer) to test the URL's you are creating for the graph API. You can see what results look like with different permissions granted and code accordingly for the response. Hope that helps!