ThinkPhp5.1 makes WeChat payment and several status descriptions after payment

Many times, WeChat payment interface calls need to be used during project development, such as mall production, online payment, insurance payment, etc. The editor has recently built several water fee charging systems, letter of guarantee issuance systems, and online registration. The system all uses WeChat payment. The production of WeChat payment and the description of several statuses after payment are listed below. I hope it will be helpful to everyone.

1 WeChat Pay

【Scan QR code to pay】

public function wxPayImg($body,$out_trade_no,$fee,$product_id,$logo,$path,$attach,$pro_id){
    require_once Env::get('app_path')."api/wxpay/lib/WxPay.Api.php";
    //实例化配置信息
    $config = new WxPayConfig();
    $input = new \WxPayUnifiedOrder();
    //设置商品描述
    $input->SetBody($body);
    //设置订单号
    $input->SetOut_trade_no($out_trade_no);
    //设置商品金额（单位：分）
    $input->SetTotal_fee($fee);
    //设置异步通知地址
    $notify = $config->GetNotifyUrl();
    $input->SetNotify_url($notify);
    //设置交易类型
    $input->SetTrade_Type('NATIVE');
    //设置商品ID
    $input->SetProduct_id($product_id);
    $input->SetDevice_info($pro_id);
    $input->SetAttach($attach);
    //调用统一下单API
    $result = \WxPayApi::unifiedOrder($config,$input);
    //dump($result);
    $qr_url = $result['code_url'];
    $img = $this->createCode($qr_url,$logo,$path);
    //生成数组
    $array = array('img'=>$img,'out_trade_no'=>$out_trade_no);
    return $array;
}
//生成二维码
public function createCode($code_url,$logo,$path){
    //创建基本的QR码
    $qrCode = new QrCode($code_url);
    $qrCode->setSize(300);
    //设置高级选项
    $qrCode->setWriterByName('png');
    $qrCode->setEncoding('UTF-8');
    $qrCode->setErrorCorrectionLevel(ErrorCorrectionLevel::HIGH());
    $qrCode->setForegroundColor(['r' => 0, 'g' => 0, 'b' => 0, 'a' => 0]);
    $qrCode->setBackgroundColor(['r' => 255, 'g' => 255, 'b' => 255, 'a' => 0]);
    //$qrCode->setLabel('', 16, App::getAppPath().'/../public/static/user/font/msyhl.ttc', LabelAlignment::CENTER());
    $qrCode->setLogoPath($logo);
    $qrCode->setLogoWidth(50);
    $qrCode->setValidateResult(false);
    //边距设置
    $qrCode->setMargin(10);
    //直接输出二维码
    header('Content-Type: '.$qrCode->getContentType());
    //echo $qrCode->writeString();
    //将二维码保存到指定目录
    $qrCode->writeFile($path);
    //生成数据URI以内联图像数据（即在<img>标记内）
    $dataUri = $qrCode->writeDataUri();
    return $dataUri;
}

【JSAPI interface payment】

public function jsApiPay($openId,$Body,$out_trade_no,$fee,$product_id,$attach){
    require_once Env::get('app_path')."api/wxpay/lib/WxPay.Api.php";
    $tools = new JsApiPay();
    $input = new \WxPayUnifiedOrder();
    //设置商品描述
    $input->SetBody($Body);
    //设置订单号
    $input->SetOut_trade_no($out_trade_no);
    //设置商品金额（单位：分）
    $input->SetTotal_fee($fee);
    //设置异步通知地址
    $config = new WxPayConfig();
    $notify = $config->GetNotifyUrl();
    $input->SetNotify_url($notify);
    //设置交易类型
    $input->SetTrade_Type('JSAPI');
    //设置商品ID
    $input->SetProduct_id($product_id);
    //用户openID
    $input->SetOpenid($openId);
    $input->SetAttach($attach);
    //调用统一下单API
    $result = \WxPayApi::unifiedOrder($config,$input);
    $jsApiParameters = $tools->GetJsApiParameters($result);
    return $jsApiParameters;
}

【Order inquiry】

public function QueryOrder($number,$transaction_id=NULL){
    require_once App::getAppPath().'api/wxpay/lib/WxPay.Api.php';
    require_once App::getAppPath().'api/wxpay/lib/WxPay.Notify.php';
    $input = new \WxPayOrderQuery();
    $input->SetOut_trade_no($number);
    $input->SetTransaction_id($transaction_id);
    $config = new WxPayConfig();
    $result = \WxPayApi::orderQuery($config, $input);
    if($result['result_code']=='SUCCESS'){
        if($result['trade_state']=='SUCCESS'){
            $arr = json_decode($result['attach'],true);
            $pay_time = $this->getPayTime($result['time_end']);
            return ['code'=>100,'result_code'=>$result['result_code'],'attach'=>$arr,'pay_time'=>$pay_time,'result'=>$result,'msg'=>"支付成功"];
        }else{
            return ['code'=>101,'result_code'=>$result['result_code'],'err_code'=>$result['err_code'],'result'=>$result,'msg'=>"订单未支付"];
        }
    }else{
        return ['code'=>103,'result_code'=>$result['result_code'],'result'=>$result,'msg'=>"订单不存在"];
    }
    //dump($result);
    //return $result;
}

2 Settings of attach parameters during WeChat payment

attach, official explanation: additional data is returned as is in the query API and payment notification, and can be used as custom parameters. Actual situation This field will only be returned if the payment is completed. Sometimes we need to return some specific values ​​when querying orders during development, such as: member ID, payment order ID, application ID, member name, etc. At this time, we can use attach to pass parameters, but attach is a string. Sometimes Often the value passed is an array, so you only need to use json_encode for conversion, for example:

$remarks = array(
    'cid'=>1,
    'member_id'=>2,
    'apply_id'=>28,
);
$attach = json_encode($remarks);

After querying the order, use json_decode for conversion, for example:

$arr = json_decode($result['attach'],true);

The $arr obtained here is an array, which can be called directly according to the calling rules of the array.

3 Several statuses of WeChat payment

When the queried order information does not exist, The return is as follows:

array(9) {
  ["appid"] => string(18) "公众号APPId"
  ["err_code"] => string(13) "ORDERNOTEXIST"
  ["err_code_des"] => string(15) "订单不存在"
  ["mch_id"] => string(10) "商户ID"
  ["nonce_str"] => string(16) "H0K6KPemexExM5DV"
  ["result_code"] => string(4) "FAIL"
  ["return_code"] => string(7) "SUCCESS"
  ["return_msg"] => string(2) "OK"
  ["sign"] => string(64) "8779CA8C7F4931B4296C19FFFB176A3111F74B7244123A0C0EB7AD8DB2B1BDA49DA"
}

When the payment of the queried order information fails, the return is as follows:

array(11) {
  ["appid"] => string(18) "公众号APPId"
  ["attach"] => string(13) "你的传参值"
  ["mch_id"] => string(10) "商户ID"
  ["nonce_str"] => string(16) "BR3zfazCdI3vZj5e"
  ["out_trade_no"] => string(13) "1636555204840"
  ["result_code"] => string(7) "SUCCESS"
  ["return_code"] => string(7) "SUCCESS"
  ["return_msg"] => string(2) "OK"
  ["sign"] => string(64) "7927EC724A7FDBFF034621B1EC492DB4D130AC13A43E4C66C7B6AD7889736CD5"
  ["trade_state"] => string(6) "NOTPAY"
  ["trade_state_desc"] => string(15) "订单未支付"
}

When the queried order information exists, the return is as follows:

array(21) {
  ["appid"] => string(18) "公众号APPId"
  ["attach"] => string(13) "你的传参值"
  ["bank_type"] => string(10) "LZB_CREDIT"
  ["cash_fee"] => string(4) "2000"
  ["cash_fee_type"] => string(3) "CNY"
  ["fee_type"] => string(3) "CNY"
  ["is_subscribe"] => string(1) "Y"
  ["mch_id"] => string(10) "商户ID"
  ["nonce_str"] => string(16) "Y8iYqXqHfs22hexX"
  ["openid"] => string(28) "支付者微信openid"
  ["out_trade_no"] => string(13) "1636600772812"
  ["result_code"] => string(7) "SUCCESS"
  ["return_code"] => string(7) "SUCCESS"
  ["return_msg"] => string(2) "OK"
  ["sign"] => string(64) "7AC36F5EA6C4EE5D33584F0F1CDB54F804F0B196B49B61A4FFB6C045D521DA3C"
  ["time_end"] => string(14) "20211111111938"
  ["total_fee"] => string(4) "2000"
  ["trade_state"] => string(7) "SUCCESS"
  ["trade_state_desc"] => string(12) "支付成功"
  ["trade_type"] => string(5) "JSAPI"
  ["transaction_id"] => string(28) "4200001198202111115284536175"
}

Native payment is successful

array(22) {
  ["appid"] => string(18) "公众号APPId"
  ["attach"] => string(13) "你的传参值"
  ["bank_type"] => string(6) "OTHERS"
  ["cash_fee"] => string(1) "1"
  ["cash_fee_type"] => string(3) "CNY"
  ["device_info"] => string(1) "1"
  ["fee_type"] => string(3) "CNY"
  ["is_subscribe"] => string(1) "Y"
  ["mch_id"] => string(10) "商户ID"
  ["nonce_str"] => string(16) "Y8iYqXqHfs22hexX"
  ["openid"] => string(28) "支付者微信openid"
  ["out_trade_no"] => string(13) "1642682408295"
  ["result_code"] => string(7) "SUCCESS"
  ["return_code"] => string(7) "SUCCESS"
  ["return_msg"] => string(2) "OK"
  ["sign"] => string(64) "2F25084A568BBDA805DA8EE3FEB846448C9778DCBC2B745E8210D950E0742E38"
  ["time_end"] => string(14) "20220120204024"
  ["total_fee"] => string(1) "1"
  ["trade_state"] => string(7) "SUCCESS"
  ["trade_state_desc"] => string(12) "支付成功"
  ["trade_type"] => string(6) "NATIVE"
  ["transaction_id"] => string(28) "4200001358202201201811257221"
}

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The above is the editor’s summary of some relevant knowledge about WeChat payment , I hope it will be helpful to all developers!

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