Stopping people from brute forcing URL / UUIDs

[eluser]dcunited08[/eluser]
Another option I just thought of would be to change the link by multiplying a large number and the id and then dividing to find the ID on the next request.

Code:

// for link
site_url("details/". $id * 123456);

function get_data_by_id($id){
//check to make sure the id has been obfuscated
$id = (($id % 123456) === 0) ? ( $id / 123456 ) : $id;

//rest of code here

Almost all options could be figured out and automatically replicated but the time it takes to figure it out, without a tool, is much greater.