Weird!!

[Anon]

Okay, I've been using the following snippet of code for quite awhile and all has been well.. but suddenly one day, it started failing for no apparent reason! Can anyone see a problem with it?

srand((double)microtime()*1000000);
$regkey = rand(600000,6000000);

Thanks for any help..

[Anon]

Warning: rand(): Invalid range: 600000..6000000 in /path/to/my/file/file.php on line 56