微信领红包问题

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function ($min = 0, $max = 1) {
return $min + mt_rand() / mt_getrandmax() * ($max - $min);
}
function raffle()
{
$total = 100;
$num = 10;
$leftTotal = 100;
$leftNum = 10;
$minLimit = 0.01;
for($i=0;$i<$num;$i++)
{
if (1 == $leftNum) {
$money = $leftTotal;
echo $money."n";
break;
}
$money = randomFloat($minLimit,$leftTotal/$leftNum*2);
echo $money."n";
$leftTotal -= $money;
$leftNum --;
}
}
raffle();