how to do fql.multiquery using facebook php sdk 3.

Question

I'm in the process of migrating from the 2.x PHP SDK to 3.x. All of the multiquery calls are broken and I haven't been able to figure out how to resolve.

The facebook connect login using oauth javascript works and allows data for the current user to be accessed server side. I assume this verifies my access token is legit.

I've tried the following code variations and get errors each time:

Old way:

        $id = $fb->getUser(); // RETURNS A VALID USER ID
        $fql = '{ "friends" : "SELECT uid FROM user WHERE has_added_app=1 and uid IN (SELECT uid2 FROM friend WHERE uid1 = '.$id.')", "profiles" : "SELECT uid, name, pic_square FROM user WHERE uid IN (SELECT uid FROM #friends)"}';

        $response = $fb->api( array('method' => 'fql.multiquery','queries' => $fql));

Gives the error: PHP Fatal error: Uncaught Exception: 102: Requires user session\n thrown

Assumed New Way of doing it:

        $id = $fb->getUser(); // RETURNS A VALID USER ID
        $fql = '{ "friends" : "SELECT uid FROM user WHERE has_added_app=1 and uid IN (SELECT uid2 FROM friend WHERE uid1 = '.$id.')", "profiles" : "SELECT uid, name, pic_square FROM user WHERE uid IN (SELECT uid FROM #friends)"}';

        $response = $fb->api( array('method' => 'fql.query','query' => $fql));

Gives the error: PHP Fatal error: Uncaught Exception: 601: Parser error: unexpected '{' at position 0

Any help understanding how to do a multiquery using the new PHP SDK is appreciated.

Answer 1

Just pass queries as associative array:

  $common_fields_fql = 'SELECT uid, email, contact_email, first_name, last_name, birthday_date, pic_square, sex, hometown_location, current_location, is_app_user FROM user WHERE uid ';
  $fql = array(
    'friends' => 'SELECT uid2 FROM friend WHERE uid1 = me()',
    'friends_details' => $common_fields_fql . 'IN (SELECT uid2 FROM #friends)',
    'me' => $common_fields_fql . '= me()',
    'family' => 'SELECT uid, birthday, name, relationship FROM family WHERE profile_id = me()',
  );
  $details = $facebook->api(array(
    'method'   => 'fql.multiquery',
    'queries'  => $fql,
  ));

Answer 2

For your particular query, use the new fql Graph API end-point and in only one query:

$user = $facebook->getUser();
if ($user) {
  try {
    $fql = urlencode("SELECT uid, name, pic_square FROM user WHERE is_app_user = 1 AND uid IN (SELECT uid2 FROM friend WHERE uid1 = $user)");
    $response = $facebook->api("/fql?q={$fql}");
  } catch (FacebookApiException $e) {
    echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
    $user = null;
  }
}

Also use the is_app_user instead of the deprecated has_added_app one!