这是将随机值转换为小数的最佳方法吗？

Question

I have a number I need to multiply by a random amount (1-4%)

In PHP terms, I was thinking..

$percent = (double) ".0".mt_rand(1,4);

Would that yield .01 - .04? in a number form, not a string?

If so great, but is there a safer/more efficient way of doing this?

Answer 1

Why not just $percent = mt_rand(1, 4)/100.0;