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fix-wxpay-price-bug #1

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fix-wxpay-price-bug #1

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10 changes: 9 additions & 1 deletion src/WxPay.php
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,10 @@
use wycto\pay\wxpay\JsApiPay;
class WxPay extends PayAbstract
{
// 人民币元转分比例
const RMB_YUAN_FEN_RATE = 100;


// 全局唯一实例
private static $_app = null;

Expand Down Expand Up @@ -39,7 +43,11 @@ function weiXinPay($paran){
$input->SetBody($paran['body']);
$input->SetAttach("attach");
$input->SetOut_trade_no($paran['out_trade_no']);
$input->SetTotal_fee($paran['total_fee']*100);
// 浮点型计算可能出现丢失精度问题，如 19.9 * 100
// @todo: 安装相关函数拓展后，推荐使用以下方式对人民币价格单位进行转换
// $total_fee = (int)bcmul($paran['total_fee'], self::RMB_YUAN_FEN_RATE),
$total_fee = (string)($paran['total_fee'] * self::RMB_YUAN_FEN_RATE);
$input->SetTotal_fee($total_fee);
$input->SetTime_start(date("YmdHis"));
$input->SetTime_expire(date("YmdHis", time() + 600));
$input->SetGoods_tag("test");
Expand Down