RE: [PHP] seeding using mt_srand();

Hi Phil, > I'm doing everything correct, although my random > numbers don't seem totally random. There are two reasons for this. Firstly, you might not be seeding mt_srand() with a sensible seed - if you always use 23 as your seed, you'll always get the same sequence of random numbers. You're better off seeding it with the current time or something - if you haven't already, have a look at the manual page at http://php.net/mt_srand, there's an example there. Secondly, random numbers generated by a computer aren't random, they're what's known as "pseudo-random". To generate truly random numbers you need something like a decaying radioactive material as your seed source - http://www.fourmilab.ch/hotbits/ provides exactly this, so you could always get your seeds via the web :-) Cheers Jon