generating random numbers-please help!

[Anon]

this post basically consists of 2 questions. hope you can help me!
1)is there any way to specify the number of digits of a random number generated and how?
2)i currently use the following method to generate random numbers:
mt_srand((double)microtime()*1000000);
$randomnum = mt_rand();
is this the best way or is there better?

thanks!!

[chowdary]

Hi Dan,
The way you did is right.You can,t specify the number of digits directly instead you can do this, suppose you wish to generate 4 digit random numbers specify the limits i.e $randomnum = mt_rand(1000,9999);