/** * 拼手气红包函数 * @param int $fee 红包总金额 * @param int $c 发给多少人 * @return array */function RedEnvelope($fee, $c){//    $fee = 100;    $n = $fee / 2;    for ($i = 0; $i < $c; $i++) {        if ($i == ($c - 1)) {            $arr[] = $fee;        } else {            $arr[] = $j = rand(0.01, $n) + rand(11, 99) / 100;            $fee = $fee - $j;            $n = $fee / 4;        }    }    return $arr;}