PHP微信三方平台-微信支付（扫码支付）

1、官方文档地址：

https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=6_1

2、逻辑分析：

　　生成支付二维码-》用户扫码支付-》成功后支付回调完成业务功能

3、准备工作

一个生成图片二维码的文件（phpqrcode）

 

二、代码

require_once \'../librarys/wx/wx_pay/lib/WxPay.Api.php\';
require_once \'../librarys/wx/wx_pay/lib/WxPay.Config.php\';
require_once \'../librarys/wx/wx_pay/lib/WxPay.NativePay.php\';

 1  /**
 2      * 微信支付，扫码支付
 3      * @return string
 4      * @throws \yii\base\Exception
 5      */
 6     public function actionWxPayNative()
 7     {
 8         $body = $this->_getRequestValue(\'body\');//主题
 9         $attach = $this->_getRequestValue(\'attach\');//备注信息
10         $trade_no = $this->_getRequestValue(\'trade_no\', Yii::$app->security->generateRandomString(8));//订单号
11         $total_fee = $this->_getRequestValue(\'total_fee\');//支付金额
12         $notify_url = $this->_getRequestValue(\'notify_url\');//支付成功后的回调地址
13         $app_id = $this->_getRequestValue(\'app_id\');//公众号的app_id
14         $mch_id = $this->_getRequestValue(\'mch_id\');//商户id
15         $mch_key = $this->_getRequestValue(\'mch_key\');//商户key
16 
17         $pay_config = [\'APPID\' => $app_id, \'MCHID\' => $mch_id, \'MCHKEY\' => $mch_key];
18 
19         $attach = json_encode($attach);
20         $notify = new \NativePay();
21         $input = new \WxPayUnifiedOrder();
22         $input->SetBody($body);
23         $input->SetAttach($attach);
24         $input->SetOut_trade_no($trade_no);
25         $input->SetTotal_fee($total_fee);
26         $input->SetTime_start(date("YmdHis"));
27         $input->SetTime_expire(date("YmdHis", time() + 600));
28 //        $input->SetGoods_tag("test");
29         $input->SetNotify_url($notify_url);
30         $input->SetTrade_type("NATIVE");
31         $input->SetProduct_id($trade_no);
32 
33 
34         $result = $notify->GetPayUrl($input, $pay_config);
35 
36         if (isset($result[\'result_code\']) == \'SUCCESS\' && $result[\'return_code\'] == \'SUCCESS\') {
37             $data = [\'app_id\' => $result[\'appid\'], \'mch_id\' => $result[\'mch_id\'], \'code_url\' => $result[\'code_url\'], \'trade_type\' => $result[\'trade_type\']];
38             return $this->renderJson($data);
39         }
40 
41         $data = [\'return_msg\' => $result[\'return_msg\']];
42 
43         $log_id = Yii::$app->session->get(self::RequestBaseApiLogId);45 
46 
47         return $this->renderJson($data, 1, \'生成扫码支付失败\');
48     }

页面

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019-01-10
 * Time: 17:52
 */
?>

<div class="message-cz">
    <div class="top">支付金额 <b class="font-red">￥0.01</b></div>
    <div class="zxzf">
        <div class="ewm">
            <img alt="扫码支付" src="<?php echo \yii\helpers\Url::to([\'common/qr-code\', \'qr_code\' => $code_url]); ?>"
                 style="width:220px;height:220px;"/>
        </div>
    </div>
    <p>在微信右上角点击"扫一扫"</p>
    <a href="javascript:;" class="btn_close"></a>
</div>


<script type="text/javascript">
    $(\'.btn_close\').click(function () {
        $(\'.inside-alert-wrapper\').hide();
        clearInterval(ref);
    });

    var data = {};
    data.record_id = "<?= $record_info[\'id\'] ?>";

    var count = 0;
    ref = setInterval(function () {
        count++;
        if(count >= 300) {
            clearInterval(ref);
        }

        requestJson(\'check-recharge-status\', data, false, function (responseJson) {
            if (responseJson.data == \'1\') {
                infoDialog(\'支付成功\');
                clearInterval(ref);
                $(\'.inside-alert-wrapper\').hide();
                window.location.reload();
            }
        })
    }, 2000);
</script>