回答

很简单，随机红包php算法代码

<?php

function rand_money($total_bean, $total_packet)

{

  $min_bean = 1;

  $max_bean = 5000;

  $range = 2;

  $total_bean = $total_bean - $total_packet * $min_bean; //每个人预留一个最小值

  $list = [];

  $min = 1;

  while(count($list) < $total_packet-1){

    $max = floor($total_bean / $total_packet) * $range;

    $bean = rand($min, $max);

    if ($bean <= $max_bean - 1) {

      $list[] = $bean;

      $total_bean -= $bean;

    }

  }

  $list[] = $total_bean;//剩余的金豆作为最后一个红包

  //合并

  foreach ($list as $k => $v) {

    $list[$k] += $min_bean;

  }

  return $list;

}

$ret=rand_money(100,10);//100分，我们分给10个人

var_dump($ret);//每个人的分钱数

echo array_sum($ret);//分钱后的钱总和

<?php
function aver_money($total, $nums) {
    $ret = $total / $nums;
    if (is_int($ret)) {
        return $ret;
    } else {
        throw new Exception("抛出异常");
    }
}
echo aver_money(100,4);