Random Generator of Unequal Numbers

[Paradine]

This function returns numbers that are not equal meaning multiple values that do not equal the same:

<?php
function randiff($min, $max, $num) {
    if ($min<$max && $max-$min+1 >= $num && $num>0) {
        $random_nums = array();
        $i=0;
        while($i<$num) {
            $rand_num = rand($min, $max);
            if (!in_array($rand_num, $random_nums)) {
                $random_nums[] = $rand_num;
                $i++;
            }
        }
        return $random_nums;
    } else {
        return false;
    }
}
?>

Usage:

<?php
$nums = randiff(0,10,2);
$var1 = $nums[0];
$var2 = $nums[1];
?>

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