function get_access_token($base_url)
{
if (isset($_REQUEST['access_token'])) {
return $_REQUEST['access_token'];
}
$params = array();
$params['client_id'] = APP_ID;
$params['redirect_uri'] = $base_url;
if (!isset($_REQUEST['code'])) {
$params['scope'] = 'read_insights';
$url = FacebookMethods::getGraphApiUrl('oauth/authorize', $params);
throw new RedirectionException($url);
} else {
$params['client_secret'] = APP_SECRET;
$params['code'] = $_REQUEST['code'];
$url = FacebookMethods::getGraphApiUrl('oauth/access_token');
$response = FacebookMethods::fetchUrl($url, $params);
$response = strstr($response, 'access_token=');
$result = substr($response, 13);
$pos = strpos($result, '&');
if ($pos !== false) {
$result = substr($result, 0, $pos);
}
return $result;
}
}
function get_insights($token, $id, $start)
{
$start->modify('+1 day');
$path = $id . '/insights';
$url = FacebookMethods::getGraphApiUrl($path);
$params = array('access_token' => $token, 'method' => 'GET', 'since' => $start->format('Y-m-d'));
$start->modify('+1 day');
$params['until'] = $start->format('Y-m-d');
$insights = FacebookMethods::fetchUrl($url, $params);
return $insights;
}
