PHP 将一个数分成区间的数
/**
* money数值
* num分成数量
* min最小值
* max最大值
*/
public function getBonus($money=300, $num=750, $min=0.3, $max=0.5)
{
$data = array();
if ($min * $num > $money) {
return array();
}
if ($max * $num < $money) {
return array();
}
while ($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[] = $k;
}
print_r($data);
}