[SOLVED] Random number only once

[PHPTOM]

Hi,

Can someone point me in the right direction. This is what I need to do:

I need to choose 12 random numbers from 1 to 80 but they cant be the same.

If I do rand(0,80) for say 12 variables there is a chance that it could be the same as one of the others.

 

Thanks

[LemonInflux]

$num = array();

for($i=0;$i>12;$i++) {
$num[] = chooseRand();
}

function chooseRand() {
$n = rand(0,80);
if(in_array($n, $num) {
chooseRand();
} else {
return $n;
}
}

 

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[kenrbnsn]

A much easier way:

<?php
$nums = range(1,80);
shuffle($nums);
$nums12 = array_slice($nums,0,12);
echo implode(', ',$nums12);
?>

 

Ken

[LemonInflux]

Oh yeah, haha. I don't think like that

 

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[PHPTOM]

Thanks a lot