/*

     * 吧金额数字转成可视化的方便读的汉字表述

     */

    function amountConversion(float $amount = 0) {

        $moneyArray = [

            ['length' => 100000000, 'unit' => '亿'],

            ['length' => 10000, 'unit' => '万'],

            ['length' => 1, 'unit' => '元']

        ];

        $return = '';

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

            if ($amount > $v['length']) {

                $temp = intval($amount / $v['length']);

                $return .= $temp . $v['unit'];

                $amount -= $temp * $v['length'];

            }

        }

        return $return;

    }