微信支付退款

微信退款感觉比支付宝要容易一点

官网api:https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_1

直接上代码:

    public function refound(){
        $ref= md5("appid=1233213&mch_id=1233213&nonce_str=2194kfhaafaf384&op_user_id=1461000002"
            . "&out_refund_no=201704181551358393&out_trade_no=201704181551358393&refund_fee=1&total_fee=1"
            . "&key=yudsd7rfer7dsadh0UfdoReraRdsad4d");//sign加密MD5
        $refund=array(
            \'appid\'=>\'12323123\',
            \'mch_id\'=>\'123213213\',//商户号
            \'nonce_str\'=>\'2194kfhaafaf384\',//随机字符串
            \'op_user_id\'=>\'1461000002\',
            \'out_refund_no\'=>\'201704181551358393\',
            \'out_trade_no\'=>\'201704181551358393\',
            \'refund_fee\'=>\'1\',
            \'total_fee\'=>\'1\',
            \'sign\'=>$ref
        );
        $url="https://api.mch.weixin.qq.com/secapi/pay/refund";;//微信退款地址，post请求
        $xml=ToXml($refund);
        $ch=curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_HEADER,1);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,1);//证书检查
        curl_setopt($ch,CURLOPT_SSLCERTTYPE,\'pem\');
        curl_setopt($ch,CURLOPT_SSLCERT,\'plugins/payment/weixin/cert/apiclient_cert.pem\');
        curl_setopt($ch,CURLOPT_SSLCERTTYPE,\'pem\');
        curl_setopt($ch,CURLOPT_SSLKEY,\'plugins/payment/weixin/cert/apiclient_key.pem\');
        curl_setopt($ch,CURLOPT_POST,1);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
        $data=curl_exec($ch);
        if($data){ //返回来的是xml格式需要转换成数组再提取值，用来做更新
            curl_close($ch);
            dump($data);
        }else{
            $error=curl_errno($ch);
            echo "curl出错，错误代码：$error"."<br/>";
            echo "<a href=\'http://curl.haxx.se/libcurl/c/libcurs.html\'>;错误原因查询</a><br/>";
            curl_close($ch);
            echo false;
        }
    }

function ToXml($arr)
{
    if(!is_array($arr)
        || count($arr) <= 0)
    {
        throw new WxPayException("数组数据异常！");
    }

    $xml = "<xml>";
    foreach ($arr as $key=>$val)
    {
        if (is_numeric($val)){
            $xml.="<".$key.">".$val."</".$key.">";
        }else{
            $xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
        }
    }
    $xml.="</xml>";
    return $xml;
}

最主要证书的添加，基本上就可以走通的