'; $app_secret = ''; $app_id = ''; $id = ''; $api = Api::init($app_id, $app_secret, $access_token); $api->setLogger(new CurlLogger()); $fields = array( ); $params = array( 'name' => 'offline_event_set', 'description' => 'conversion data used for superbowl campaign', ); echo json_encode((new Business($id))->createOfflineConversionDataSet( $fields, $params )->exportAllData(), JSON_PRETTY_PRINT);