case "set_issuu_book":
$value = $api->set_issuu_book();
break;
case "set_default_book_journey":
$value = $api->set_default_book_journey();
break;
case "set_triggers":
$value = $api->set_triggers();
break;
case "set_reader_size":
$value = $api->set_reader_size();
break;
case "get_issuu_book":
$value = $api->get_issuu_book();
case "get_default_book_journey":
$value = $api->get_default_book_journey();
break;
break;
case "get_triggers":
$value = $api->get_triggers();
break;
case "get_reader_size":
$value = $api->get_reader_size();
break;
case "set_nextpage":
if (isset($_REQUEST["nextpage"]) && isset($_REQUEST["audience_phone"])) {
$value = $api->set_NextPage($_REQUEST["nextpage"], $_REQUEST["audience_phone"]);
} else {
$value = "Missing argument";
}
break;