$money=5;
$num=30;
$data = array();
$max=$money*0.3;
$min=0.01;
while ($num >= 1) {
$num--;
$kmix = max($min, $money - $num * $max);
$kmax = min($max, $money - $num * $min);
$kAvg = $money / ($num + 1);
//获取最大值和最小值的距离之间的最小值
$kDis = min($kAvg - $kmix, $kmax - $kAvg);
//获取0到1之间的随机数与距离最小值相乘得出浮动区间,这使得浮动区间不会超出范围
$r = ((float)(rand(1, 10000) / 10000) - 0.5) * $kDis * 2;
$k = round($kAvg + $r, 2);
$money -= $k;
$data[] = $k;
}
var_dump($data);
php随机红包金额
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转载自blog.csdn.net/salestina/article/details/126900834
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