fb comments

function full_comment_count() {
global $post;
$url = get_permalink($post->ID);

$filecontent = file_get_contents('https://graph.facebook.com/?ids=' . $url);
$comments = file_get_contents('https://graph.facebook.com/' . $id . '/comments?summary=true');
var_dump($comments);
$json = json_decode($filecontent);
$count = $json->$url->comments;
$wpCount = get_comments_number();
$realCount = $count + $wpCount;
if ($realCount == 0 || !isset($realCount)) {
    $realCount = 0;
}
return $realCount;
}