http://xxx/xxx/index.php?page=view.php&id=1
The id seems can be change (189 * 5 = 945).
http://xxx/xxx/index.php?page=view.php&id=945
Tip: Many a time it happens that admins of the website have a very large number as an ID which can use to communicate with each other, always good to brute force the IDs and check the connection reponse.