微信web端生成支付二维码

时间:2024-03-10 18:39:18

授权获取二维码类:

<?php
/**
 * Trade类
 * @author xyyphp
 * @date 2016/10/10
 */
abstract class TradeController extends BaseController
{
        protected $mchid;
    protected $appid;
    protected $key;
    
    public function init()
    {
            parent::init();
            $this->mchid = WX_MCHID; // 微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送
            $this->appid = WX_APPID; //公众号APPID 通过微信支付商户资料审核后邮件发送
            $this->key = WX_APIKEY;   //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥
    }
    
    /**
    * @param string $openid 调用【网页授权获取用户信息】接口获取到用户在该公众号下的Openid
    * @param float $totalFee 收款总费用 单位元
    * @param string $outTradeNo 唯一的订单号
    * @param string $orderName 订单名称
    * @param string $notifyUrl 支付结果通知url 不要有问号
    * https://mp.weixin.qq.com/ 微信支付-开发配置-测试目录
    * 测试目录 http://mp.izhanlue.com/paytest/  最后需要斜线,(需要精确到二级或三级目录)
    * @return string
    */
    public function createJsBizPackage($totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)
    {
        $config = array(
                    \'mch_id\' => $this->mchid,
                    \'appid\' => $this->appid,
                    \'key\' => $this->key,
        );
        $unified = array(
            \'appid\' => $config[\'appid\'],
            \'attach\' => \'支付\',             //商家数据包,原样返回
            \'body\' => $orderName,
            \'mch_id\' => $config[\'mch_id\'],
            \'nonce_str\' => $this->createNonceStr(),
            \'notify_url\' => $notifyUrl,
            //\'openid\' => $openid,            //rade_type=JSAPI,此参数必传
            \'out_trade_no\' => $outTradeNo,
            \'spbill_create_ip\' => \'127.0.0.1\',
            \'total_fee\' => intval($totalFee * 100),       //单位 转为分
            \'trade_type\' => \'NATIVE\',
        );
        $unified[\'sign\'] = $this->getSign($unified, $config[\'key\']);
        $responseXml = $this->curlPost(\'https://api.mch.weixin.qq.com/pay/unifiedorder\', $this->arrayToXml($unified));
        /*
        <xml>
        <return_code><![CDATA[SUCCESS]]></return_code>
        <return_msg><![CDATA[OK]]></return_msg>
        <appid><![CDATA[wx00e5904efec77699]]></appid>
        <mch_id><![CDATA[1220647301]]></mch_id>
        <nonce_str><![CDATA[1LHBROsdmqfXoWQR]]></nonce_str>
        <sign><![CDATA[ACA7BC8A9164D1FBED06C7DFC13EC839]]></sign>
        <result_code><![CDATA[SUCCESS]]></result_code>
        <prepay_id><![CDATA[wx2015032016590503f1bcd9c30421762652]]></prepay_id>
        <trade_type><![CDATA[JSAPI]]></trade_type>
        </xml>
        */
        $unifiedOrder = simplexml_load_string($responseXml, \'SimpleXMLElement\', LIBXML_NOCDATA);
        if ($unifiedOrder === false) {
            die(\'parse xml error\');
        }
        if ($unifiedOrder->return_code != \'SUCCESS\') {
            die($unifiedOrder->return_msg);
        }
        if ($unifiedOrder->result_code != \'SUCCESS\') {
            die($unifiedOrder->err_code);
            /*
            NOAUTH 商户无此接口权限
            NOTENOUGH 余额不足
            ORDERPAID 商户订单已支付
            ORDERCLOSED 订单已关闭
            SYSTEMERROR 系统错误
            APPID_NOT_EXIST   APPID不存在
            MCHID_NOT_EXIST MCHID不存在
            APPID_MCHID_NOT_MATCH appid和mch_id不匹配
            LACK_PARAMS 缺少参数
            OUT_TRADE_NO_USED 商户订单号重复
            SIGNERROR 签名错误
            XML_FORMAT_ERROR XML格式错误
            REQUIRE_POST_METHOD 请使用post方法
            POST_DATA_EMPTY post数据为空
            NOT_UTF8 编码格式错误
            */
        }
        //$unifiedOrder->trade_type 交易类型 调用接口提交的交易类型,取值如下:JSAPI,NATIVE,APP
        //$unifiedOrder->prepay_id 预支付交易会话标识 微信生成的预支付回话标识,用于后续接口调用中使用,该值有效期为2小时
        //$unifiedOrder->code_url 二维码链接 trade_type为NATIVE是有返回,可将该参数值生成二维码展示出来进行扫码支付
                $code_list = (array)$unifiedOrder->code_url;
        $arr = array(
            "appId" => $config[\'appid\'],
            "timeStamp" => $timestamp,
            "nonceStr" => $this->createNonceStr(),
            "package" => "prepay_id=" . $unifiedOrder->prepay_id,
            "signType" => \'MD5\',
                        "code_url" => $code_list[0]
        );
        $arr[\'paySign\'] = $this->getSign($arr, $config[\'key\']);
        return $arr;
    }
        
        /**
         * 查询订单
    */
    public function orderQuery($outTradeNo)
    {
        $config = array(
                    \'mch_id\' => $this->mchid,
                    \'appid\' => $this->appid,
                    \'key\' => $this->key,
        );
        $unified = array(
            \'appid\' => $config[\'appid\'],
            \'mch_id\' => $config[\'mch_id\'],
            \'out_trade_no\' => $outTradeNo,
                        \'nonce_str\' => $this->createNonceStr()
        );
        $unified[\'sign\'] = $this->getSign($unified, $config[\'key\']);
        $responseXml = $this->curlPost(\'https://api.mch.weixin.qq.com/pay/orderquery\', $this->arrayToXml($unified));
        /*
        <xml><return_code><![CDATA[SUCCESS]]></return_code>
                <return_msg><![CDATA[OK]]></return_msg>
                <appid><![CDATA[wx406c5455be1a2590]]></appid>
                <mch_id><![CDATA[1398638602]]></mch_id>
                <nonce_str><![CDATA[ousUeAEvH6KlDiGe]]></nonce_str>
                <sign><![CDATA[D8BFB54A52C324238D5A4BA8C8BC6D01]]></sign>
                <result_code><![CDATA[SUCCESS]]></result_code>
                <out_trade_no><![CDATA[1476157452]]></out_trade_no>
                <trade_state><![CDATA[NOTPAY]]></trade_state>
                <trade_state_desc><![CDATA[订单未支付]]></trade_state_desc>
                </xml>
        */
        $unifiedOrder = simplexml_load_string($responseXml, \'SimpleXMLElement\', LIBXML_NOCDATA);
        if ($unifiedOrder === false) {
            die(\'parse xml error\');
        }
        if ($unifiedOrder->return_code != \'SUCCESS\') {
            die($unifiedOrder->return_msg);
        }
        if ($unifiedOrder->result_code != \'SUCCESS\') {
            die($unifiedOrder->err_code);
            /*
            NOAUTH 商户无此接口权限
            NOTENOUGH 余额不足
            ORDERPAID 商户订单已支付
            ORDERCLOSED 订单已关闭
            SYSTEMERROR 系统错误
            APPID_NOT_EXIST   APPID不存在
            MCHID_NOT_EXIST MCHID不存在
            APPID_MCHID_NOT_MATCH appid和mch_id不匹配
            LACK_PARAMS 缺少参数
            OUT_TRADE_NO_USED 商户订单号重复
            SIGNERROR 签名错误
            XML_FORMAT_ERROR XML格式错误
            REQUIRE_POST_METHOD 请使用post方法
            POST_DATA_EMPTY post数据为空
            NOT_UTF8 编码格式错误
            */
        }
        //$unifiedOrder->trade_type 交易类型 调用接口提交的交易类型,取值如下:JSAPI,NATIVE,APP
        //$unifiedOrder->prepay_id 预支付交易会话标识 微信生成的预支付回话标识,用于后续接口调用中使用,该值有效期为2小时
        //$unifiedOrder->code_url 二维码链接 trade_type为NATIVE是有返回,可将该参数值生成二维码展示出来进行扫码支付
                /*
                public \'return_code\' => string \'SUCCESS\' (length=7)
                public \'return_msg\' => string \'OK\' (length=2)
                public \'appid\' => string \'wx406c5455be1a2590\' (length=18)
                public \'mch_id\' => string \'1398638602\' (length=10)
                public \'nonce_str\' => string \'lyt2ZGFeE9G0DI4W\' (length=16)
                public \'sign\' => string \'F942BB644E72FE29936C80E6780D8D8A\' (length=32)
                public \'result_code\' => string \'SUCCESS\' (length=7)
                public \'out_trade_no\' => string \'1476157452\' (length=10)
                public \'trade_state\' => string \'NOTPAY\' (length=6)
                public \'trade_state_desc\' => string \'订单未支付\' (length=15)
                */
                //已结支付
                /*
                object(SimpleXMLElement)[26]
                    public \'return_code\' => string \'SUCCESS\' (length=7)
                    public \'return_msg\' => string \'OK\' (length=2)
                    public \'appid\' => string \'wx406c5455be1a2590\' (length=18)
                    public \'mch_id\' => string \'1398638602\' (length=10)
                    public \'nonce_str\' => string \'6cFpzNc5BTyZ02x0\' (length=16)
                    public \'sign\' => string \'F01C79BD0FC4BC4FE38231BA92A91201\' (length=32)
                    public \'result_code\' => string \'SUCCESS\' (length=7)
                    public \'openid\' => string \'ojIdvuCVrweMrgaU-dFobIItTtpk\' (length=28)
                    public \'is_subscribe\' => string \'N\' (length=1)
                    public \'trade_type\' => string \'NATIVE\' (length=6)
                    public \'bank_type\' => string \'CFT\' (length=3)
                    public \'total_fee\' => string \'1\' (length=1)
                    public \'fee_type\' => string \'CNY\' (length=3)
                    public \'transaction_id\' => string \'4001652001201610116386495939\' (length=28)
                    public \'out_trade_no\' => string \'1476161468\' (length=10)
                    public \'attach\' => string \'支付\' (length=6)
                    public \'time_end\' => string \'20161011125205\' (length=14)
                    public \'trade_state\' => string \'SUCCESS\' (length=7)
                    public \'cash_fee\' => string \'1\' (length=1)
                 */
                if (isset($unifiedOrder->trade_state_desc)){
                    $msg = "订单未支付";
                }
                if (isset($unifiedOrder->transaction_id)){
                    $msg = "已支付";
                }
                return $msg;
    }
    
    
    protected function notify()
    {
        $config = array(
                    \'mch_id\' => $this->mchid,
                    \'appid\' => $this->appid,
                    \'key\' => $this->key,
        );
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
        /*
        $postStr = \'<xml>
        <appid><![CDATA[wx00e5904efec77699]]></appid>
        <attach><![CDATA[支付测试]]></attach>
        <bank_type><![CDATA[CMB_CREDIT]]></bank_type>
        <cash_fee><![CDATA[1]]></cash_fee>
        <fee_type><![CDATA[CNY]]></fee_type>
        <is_subscribe><![CDATA[Y]]></is_subscribe>
        <mch_id><![CDATA[1220647301]]></mch_id>
        <nonce_str><![CDATA[a0tZ41phiHm8zfmO]]></nonce_str>
        <openid><![CDATA[oU3OCt5O46PumN7IE87WcoYZY9r0]]></openid>
        <out_trade_no><![CDATA[550bf2990c51f]]></out_trade_no>
        <result_code><![CDATA[SUCCESS]]></result_code>
        <return_code><![CDATA[SUCCESS]]></return_code>
        <sign><![CDATA[F6F519B4DD8DB978040F8C866C1E6250]]></sign>
        <time_end><![CDATA[20150320181606]]></time_end>
        <total_fee>1</total_fee>
        <trade_type><![CDATA[JSAPI]]></trade_type>
        <transaction_id><![CDATA[1008840847201503200034663980]]></transaction_id>
        </xml>\';
        */
        $postObj = simplexml_load_string($postStr, \'SimpleXMLElement\', LIBXML_NOCDATA);
        if ($postObj === false) {
            die(\'parse xml error\');
        }
        if ($postObj->return_code != \'SUCCESS\') {
            die($postObj->return_msg);
        }
        if ($postObj->result_code != \'SUCCESS\') {
            die($postObj->err_code);
        }
        $arr = (array)$postObj;
        unset($arr[\'sign\']);
        if ($this->getSign($arr, $config[\'key\']) == $postObj->sign) {
            // $mch_id = $postObj->mch_id; //微信支付分配的商户号
            // $appid = $postObj->appid; //微信分配的公众账号ID
            // $openid = $postObj->openid; //用户在商户appid下的唯一标识
            // $transaction_id = $postObj->transaction_id;//微信支付订单号
            // $out_trade_no = $postObj->out_trade_no;//商户订单号
            // $total_fee = $postObj->total_fee; //订单总金额,单位为分
            // $is_subscribe = $postObj->is_subscribe; //用户是否关注公众账号,Y-关注,N-未关注,仅在公众账号类型支付有效
            // $attach = $postObj->attach;//商家数据包,原样返回
            // $time_end = $postObj->time_end;//支付完成时间
            echo \'<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>\';
            return $postObj;
        }
    }
    
    /**
    * curl get
    * @param string $url
    * @param array $options
    * @return mixed
    */
       private function curlGet($url = \'\', $options = array())
    {
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }
    
    /**
    * curl post
    * @param string $url
    * @param array $options
    * @return mixed
    */
       private function curlPost($url = \'\', $postData = \'\', $options = array())
    {
        if (is_array($postData)) {
            $postData = http_build_query($postData);
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https请求 不验证证书和host
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }
    
    /**
    * 随机生成一定长度字符串
    * @param string $url
    * @param array $options
    * @return mixed
    */
       private function createNonceStr($length = 16)
    {
        $chars = \'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789\';
        $str = \'\';
        for ($i = 0; $i < $length; $i++) {
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }
        return $str;
    }
    
    /**
    * 数组转成XML
    * @param string $url
    * @param array $options
    * @return mixed
    */
       private function arrayToXml($arr)
    {
        $xml = "<xml>";
        foreach ($arr as $key => $val) {
            if (is_numeric($val)) {
            $xml .= "<" . $key . ">" . $val . "</" . $key . ">";
        } else
            $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
        }
        $xml .= "</xml>";
        return $xml;
    }

    /**
    * 例如:
    * appid:  wxd930ea5d5a258f4f
    * mch_id:  10000100
    * device_info: 1000
    * Body:  test
    * nonce_str: ibuaiVcKdpRxkhJA
    * 第一步:对参数按照 key=value 的格式,并按照参数名 ASCII 字典序排序如下:
    * stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_i
    * d=10000100&nonce_str=ibuaiVcKdpRxkhJA";
    * 第二步:拼接支付密钥:
    * stringSignTemp="stringA&key=192006250b4c09247ec02edce69f6a2d"
    * sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A9CF3B7"
    */
       private function getSign($params, $key)
    {
        ksort($params, SORT_STRING);
        $unSignParaString = $this->formatQueryParaMap($params, false);
        $signStr = strtoupper(md5($unSignParaString . "&key=" . $key));
        return $signStr;
    }
    
    /**
    * 签名时字符组合
    * @param string $url
    * @param array $options
    * @return mixed
    */
       private function formatQueryParaMap($paraMap, $urlEncode = false)
    {
        $buff = "";
        ksort($paraMap);
        foreach ($paraMap as $k => $v) {
            if (null != $v && "null" != $v) {
                if ($urlEncode) {
                    $v = urlencode($v);
                }
                $buff .= $k . "=" . $v . "&";
            }
        }
        $reqPar = \'\';
        if (strlen($buff) > 0) {
            $reqPar = substr($buff, 0, strlen($buff) - 1);
        }
        return $reqPar;
    }
}

调取实例:

$money = 0.1;//订单金额
$out_trade_no = \'test_8888888\';//唯一的订单号
$order_name = \'测试订单\';//订单名称
$notifyUrl = \'http://www.test.com/\';//支付结果通知url 不要有问号
$timeStamp = time();//时间戳

//获取二维码信息
$wx_result = $this->createJsBizPackage($money, $out_trade_no, $order_name, $notifyUrl, $timeStamp);

//检测支付状态
$str_status = $this->orderQuery($out_trade_no);