'; $app_secret = ''; $app_id = ''; $id = ''; $api = Api::init($app_id, $app_secret, $access_token); $api->setLogger(new CurlLogger()); $fields = array( ); $params = array( 'creative' => array('instagram_actor_id' => '','object_story_spec' => array('link_data' => array('call_to_action' => array('type' => 'LEARN_MORE','value' => array('link' => '')),'caption' => 'www.example.com','image_hash' => '','link' => '','message' => 'Message'),'page_id' => '')), 'ad_format' => 'INSTAGRAM_STANDARD', ); echo json_encode((new AdAccount($id))->getGeneratePreviews( $fields, $params )->getResponse()->getContent(), JSON_PRETTY_PRINT);