2 random numbers

random number generator

[lj2007]

How can i generate TWO DIFFERENT random numbers using rand()?

Thanks!

[jatar_k]

do the same as getting one and store the second in a different variable

[Habtom]

$var1 = rand();
$var2 = rand() + 10;

Two random unique numbers.

[lj2007]

What if i want them both to be between 1 and 6 - but different?

[jatar_k]

$num1 = rand(1,6); 
$num2 = 0; 
while ($num2==0) { 
 $num2 = rand(1,6); 
 if ($num2 == $num1) $num2 = 0; 
}

[Habtom]

Take a look at this function:

PHP- rand() #77065 [php.net]

[Habtom]

jatar_k's solution looks simpler, try that out.

[edited by: Habtom at 1:24 pm (utc) on Aug. 22, 2007]

[Little_G]

Hi,

Also take a look at the mt_rand [php.net] function because it's faster.

Andrew

[lj2007]

I though mt_rand was slower but more random?

[Little_G]

Hi,

From php.net:

It uses a random number generator with known characteristics using the » Mersenne Twister, which will produce random numbers four times faster than what the average libc rand() provides.

Andrew