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CodeIgniter框架集成微信扫码支付SDK

2020-03-22 17:45:24
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  • 版本:CI3.0

    微信扫码支付:模式二

    下载官方demo:http://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=11_1

    我是个小菜鸟,第一次研究这个,感觉无从下手,走了很多弯路后,也算是完成了。现分享下希望对大家有帮助。

    首先下载官方demo,将文件当在libraries/ 并命名为 Wxpay。在ci配置文件config/ 下新建 wxpay_config.php 并完成配置。

    wxpay_config.php

    <?php defined('BASEPATH') OR exit('No direct script access allowed');	/**	 * TODO: 修改这里配置为您自己申请的商户信息	 * 微信公众号信息配置	 * 	 * APPID:绑定支付的APPID(必须配置,开户邮件中可查看)	 * 	 * MCHID:商户号(必须配置,开户邮件中可查看)	 * 	 * KEY:商户支付密钥,参考开户邮件设置(必须配置,登录商户平台自行设置)	 * 设置地址:http://pay.weixin.qq.com/index.php/account/api_cert	 * 	 * APPSECRET:公众帐号secert(仅JSAPI支付的时候需要配置, 登录公众平台,进入开发者中心可设置),	 * 获取地址:http://mp.weixin.qq.com/advanced/advanced?action=dev&t=advanced/dev&token=2005451881&lang=zh_CN	 * @var string	 */	$config['appid'] = '';	 	$config['mch_id'] = '';	 	$config['apikey'] = '';	 	$config['appsecret'] = '';	 	$config['sslcertPath'] =  APPPATH.'libraries/Wxpay/cert/apiclient_cert.pem';	 	$config['sslkeyPath'] = APPPATH.'libraries/Wxpay/cert/apiclient_key.pem';


    在libraries/ 下新建 CI_Wechatpay.php 。

    CI_Wechatpay.php

    <?phpdefined('BASEPATH') OR exit('No direct script access allowed');// 加载微信支付require_once APPPATH.'libraries/Wxpay/Wechatpay.php';/** * 为CI扩展微信支付类 */html' target='_blank'>class CI_Wechatpay extends WechatPay {   }

    在libraries/ 下新建Wechatpay.php 这是前辈封装好的。尽情的享用吧,其实这里已经把所以核心都封装起来了,所以demo中的文件只需要保留cert/ logs/ 、但libraries/Wxpay/example/log.php 这个很有用,所以要把它放在Wxpay/下。

    Wechatpay.php

    <?phpdefined('BASEPATH') OR exit('No direct script access allowed');class WechatPay {    const TRADETYPE_JSAPI = 'JSAPI',TRADETYPE_NATIVE = 'NATIVE',TRADETYPE_APP = 'APP';    const URL_UNIFIEDORDER = "http://api.mch.weixin.qq.com/pay/unifiedorder";    const URL_ORDERQUERY = "http://api.mch.weixin.qq.com/pay/orderquery";    const URL_CLOSEORDER = 'http://api.mch.weixin.qq.com/pay/closeorder';    const URL_REFUND = 'http://api.mch.weixin.qq.com/secapi/pay/refund';    const URL_REFUNDQUERY = 'http://api.mch.weixin.qq.com/pay/refundquery';    const URL_DOWNLOADBILL = 'http://api.mch.weixin.qq.com/pay/downloadbill';    const URL_REPORT = 'http://api.mch.weixin.qq.com/payitil/report';    const URL_SHORTURL = 'http://api.mch.weixin.qq.com/tools/shorturl';    const URL_MICROPAY = 'http://api.mch.weixin.qq.com/pay/micropay';    /**     * 错误信息     */    public $error = null;    /**     * 错误信息XML     */    public $errorXML = null;    /**     * 微信支付配置数组     * appid        公众账号appid     * mch_id       商户号     * apikey       加密key     * appsecret    公众号appsecret     * sslcertPath  证书路径(apiclient_cert.pem)     * sslkeyPath   密钥路径(apiclient_key.pem)     */    private $_config;    /**     * @param $config 微信支付配置数组     */    public function __construct($config) {        $this->_config = $config;    }    /**     * JSAPI获取prepay_id     * @param $body     * @param $out_trade_no     * @param $total_fee     * @param $notify_url     * @param $openid     * @return null     */    public function getPrepayId($body,$out_trade_no,$total_fee,$notify_url,$openid) {        $data = array();        $data["nonce_str"]    = $this->get_nonce_string();        $data["body"]         = $body;        $data["out_trade_no"] = $out_trade_no;        $data["total_fee"]    = $total_fee;        $data["spbill_create_ip"] = $_SERVER["REMOTE_ADDR"];        $data["notify_url"]   = $notify_url;        $data["trade_type"]   = self::TRADETYPE_JSAPI;        $data["openid"]   = $openid;        $result = $this->unifiedOrder($data);        if ($result["return_code"] == "SUCCESS" && $result["result_code"] == "SUCCESS") {            return $result["prepay_id"];        } else {            $this->error = $result["return_code"] == "SUCCESS" ? $result["err_code_des"] : $result["return_msg"];            $this->errorXML = $this->array2xml($result);            return null;        }    }    private function get_nonce_string() {        return substr(str_shuffle("abcdefghijklmnopqrstuvwxyz0123456789"),0,32);    }    /**     * 统一下单接口     */    public function unifiedOrder($params) {        $data = array();        $data["appid"] = $this->_config["appid"];        $data["mch_id"] = $this->_config["mch_id"];        $data["device_info"] = (isset($params['device_info'])&&trim($params['device_info'])!='')?$params['device_info']:null;        $data["nonce_str"] = $this->get_nonce_string();        $data["body"] = $params['body'];        $data["detail"] = isset($params['detail'])?$params['detail']:null;//optional        $data["attach"] = isset($params['attach'])?$params['attach']:null;//optional        $data["out_trade_no"] = isset($params['out_trade_no'])?$params['out_trade_no']:null;        $data["fee_type"] = isset($params['fee_type'])?$params['fee_type']:'CNY';        $data["total_fee"]    = $params['total_fee'];        $data["spbill_create_ip"] = $params['spbill_create_ip'];        $data["time_start"] = isset($params['time_start'])?$params['time_start']:null;//optional        $data["time_expire"] = isset($params['time_expire'])?$params['time_expire']:null;//optional        $data["goods_tag"] = isset($params['goods_tag'])?$params['goods_tag']:null;        $data["notify_url"] = $params['notify_url'];        $data["trade_type"] = $params['trade_type'];        $data["product_id"] = isset($params['product_id'])?$params['product_id']:null;//required when trade_type = NATIVE        $data["openid"] = isset($params['openid'])?$params['openid']:null;//required when trade_type = JSAPI        $result = $this->post(self::URL_UNIFIEDORDER, $data);        return $result;    }    private function post($url, $data,$cert = false) {        $data["sign"] = $this->sign($data);        $xml = $this->array2xml($data);        $ch = curl_init();        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);        curl_setopt($ch, CURLOPT_POST, 1);        curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);        curl_setopt($ch, CURLOPT_URL, $url);        if($cert == true){            //使用证书:cert 与 key 分别属于两个.pem文件            curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');            curl_setopt($ch,CURLOPT_SSLCERT, $this->_config['sslcertPath']);            curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');            curl_setopt($ch,CURLOPT_SSLKEY, $this->_config['sslkeyPath']);        }        $content = curl_exec($ch);        $array = $this->xml2array($content);        return $array;    }    /**     * 数据签名     * @param $data     * @return string     */    private function sign($data) {        ksort($data);        $string1 = "";        foreach ($data as $k => $v) {            if ($v && trim($v)!='') {                $string1 .= "$k=$v&";            }        }        $stringSignTemp = $string1 . "key=" . $this->_config["apikey"];        $sign = strtoupper(md5($stringSignTemp));        return $sign;    }    private function array2xml($array) {        $xml = "<xml>" . PHP_EOL;        foreach ($array as $k => $v) {            if($v && trim($v)!='')                $xml .= "<$k><![CDATA[$v]]></$k>" . PHP_EOL;        }        $xml .= "</xml>";        return $xml;    }    private function xml2array($xml) {        $array = array();        $tmp = null;        try{            $tmp = (array) simplexml_load_string($xml);        }catch(Exception $e){}        if($tmp && is_array($tmp)){            foreach ( $tmp as $k => $v) {                $array[$k] = (string) $v;            }        }        return $array;    }    /**     * 扫码支付(模式二)获取支付二维码     * @param $body     * @param $out_trade_no     * @param $total_fee     * @param $notify_url     * @param $product_id     * @return null     */    public function getCodeUrl($body,$out_trade_no,$total_fee,$notify_url,$product_id){        $data = array();        $data["nonce_str"]    = $this->get_nonce_string();        $data["body"]         = $body;        $data["out_trade_no"] = $out_trade_no;        $data["total_fee"]    = $total_fee;        $data["spbill_create_ip"] = $_SERVER["SERVER_ADDR"];        $data["notify_url"]   = $notify_url;        $data["trade_type"]   = self::TRADETYPE_NATIVE;        $data["product_id"]   = $product_id;        $result = $this->unifiedOrder($data);        if ($result["return_code"] == "SUCCESS" && $result["result_code"] == "SUCCESS") {            return $result["code_url"];        } else {            $this->error = $result["return_code"] == "SUCCESS" ? $result["err_code_des"] : $result["return_msg"];            return null;        }    }    /**     * 查询订单     * @param $transaction_id     * @param $out_trade_no     * @return array     */    public function orderQuery($transaction_id,$out_trade_no){        $data = array();        $data["appid"] = $this->_config["appid"];        $data["mch_id"] = $this->_config["mch_id"];        $data["transaction_id"] = $transaction_id;        $data["out_trade_no"] = $out_trade_no;        $data["nonce_str"] = $this->get_nonce_string();        $result = $this->post(self::URL_ORDERQUERY, $data);        return $result;    }    /**     * 关闭订单     * @param $out_trade_no     * @return array     */    public function closeOrder($out_trade_no){        $data = array();        $data["appid"] = $this->_config["appid"];        $data["mch_id"] = $this->_config["mch_id"];        $data["out_trade_no"] = $out_trade_no;        $data["nonce_str"] = $this->get_nonce_string();        $result = $this->post(self::URL_CLOSEORDER, $data);        return $result;    }    /**     * 申请退款 - 使用商户订单号     * @param $out_trade_no 商户订单号     * @param $out_refund_no 退款单号     * @param $total_fee 总金额(单位:分)     * @param $refund_fee 退款金额(单位:分)     * @param $op_user_id 操作员账号     * @return array     */    public function refund($out_trade_no,$out_refund_no,$total_fee,$refund_fee,$op_user_id){        $data = array();        $data["appid"] = $this->_config["appid"];        $data["mch_id"] = $this->_config["mch_id"];        $data["nonce_str"] = $this->get_nonce_string();        $data["out_trade_no"] = $out_trade_no;        $data["out_refund_no"] = $out_refund_no;        $data["total_fee"] = $total_fee;        $data["refund_fee"] = $refund_fee;        $data["op_user_id"] = $op_user_id;        $result = $this->post(self::URL_REFUND, $data,true);        return $result;    }    /**     * 申请退款 - 使用微信订单号     * @param $out_trade_no 商户订单号     * @param $out_refund_no 退款单号     * @param $total_fee 总金额(单位:分)     * @param $refund_fee 退款金额(单位:分)     * @param $op_user_id 操作员账号     * @return array     */    public function refundByTransId($transaction_id,$out_refund_no,$total_fee,$refund_fee,$op_user_id){        $data = array();        $data["appid"] = $this->_config["appid"];        $data["mch_id"] = $this->_config["mch_id"];        $data["nonce_str"] = $this->get_nonce_string();        $data["transaction_id"] = $transaction_id;        $data["out_refund_no"] = $out_refund_no;        $data["total_fee"] = $total_fee;        $data["refund_fee"] = $refund_fee;        $data["op_user_id"] = $op_user_id;        $result = $this->post(self::URL_REFUND, $data,true);        return $result;    }    /**     * 下载对账单     * @param $bill_date 下载对账单的日期,格式:20140603     * @param $bill_type 类型     * @return array     */    public function downloadBill($bill_date,$bill_type = 'ALL'){        $data = array();        $data["appid"] = $this->_config["appid"];        $data["mch_id"] = $this->_config["mch_id"];        $data["bill_date"] = $bill_date;        $data["bill_type"] = $bill_type;        $data["nonce_str"] = $this->get_nonce_string();        $result = $this->post(self::URL_DOWNLOADBILL, $data);        return $result;    }    /**     * 获取js支付使用的第二个参数     */    public function get_package($prepay_id) {        $data = array();        $data["appId"] = $this->_config["appid"];        $data["timeStamp"] = time();        $data["nonceStr"]  = $this->get_nonce_string();        $data["package"]   = "prepay_id=$prepay_id";        $data["signType"]  = "MD5";        $data["paySign"]   = $this->sign($data);        return $data;    }    /**     * 获取发送到通知地址的数据(在通知地址内使用)     * @return 结果数组,如果不是微信服务器发送的数据返回null     *          appid     *          bank_type     *          cash_fee     *          fee_type     *          is_subscribe     *          mch_id     *          nonce_str     *          openid     *          out_trade_no    商户订单号     *          result_code     *          return_code     *          sign     *          time_end     *          total_fee       总金额     *          trade_type     *          transaction_id  微信支付订单号     */    public function get_back_data() {        $xml = file_get_contents("php://input");        $data = $this->xml2array($xml);        if ($this->validate($data)) {            return $data;        } else {            return null;        }    }    /**     * 验证数据签名     * @param $data 数据数组     * @return 数据校验结果     */    public function validate($data) {        if (!isset($data["sign"])) {            return false;        }        $sign = $data["sign"];        unset($data["sign"]);        return $this->sign($data) == $sign;    }    /**     * 响应微信支付后台通知     * @param $return_code 返回状态码 SUCCESS/FAIL     * @param $return_msg  返回信息     */    public function response_back($return_code="SUCCESS", $return_msg=null) {        $data = array();        $data["return_code"] = $return_code;        if ($return_msg) {            $data["return_msg"] = $return_msg;        }        $xml = $this->array2xml($data);        print $xml;    }}

    接下来我是在 controller/order.php 文件下封装个方法 这里也用到了log.php ,注意看使用方法。在调bug时非常好用。

    Order.php

           /**         * wxPay 微信支付接口         * @param $Id 订单ID         * @author lyne         */        public function wxPay($id){            require_once (APPPATH.'libraries/Wxpay/log.php');            //初始化日志            $logHandler= new CLogFileHandler(APPPATH."libraries/Wxpay/logs/".date('Y-m-d').'.log');            Log::Init($logHandler, 15);            // 查预先生成的订单信息            $this->load->model('order_model');            $o = $this->order_model->getMyOrderDetails($id);            // 调用微信扫码支付接口配置信息            $this->load->config('wxpay_config');            $wxconfig['appid']=$this->config->item('appid');            $wxconfig['mch_id']=$this->config->item('mch_id');            $wxconfig['apikey']=$this->config->item('apikey');            $wxconfig['appsecret']=$this->config->item('appsecret');            $wxconfig['sslcertPath']=$this->config->item('sslcertPath');            $wxconfig['sslkeyPath']=$this->config->item('sslkeyPath');            //由于此类库构造函数需要传参,我们初始化类库就传参数给他吧            $this->load->library('CI_Wechatpay',$wxconfig);            $param['body']=$o['goods_name']; //"商品名称(自行看文档具体填什么)";            $param['attach']=$o['id']; // "我有个参数要传我就穿了个id过来,这里不要有空格避免出错";            $param['detail']=$o['order_code'];  //"我填了商品名称加订单号";            $param['out_trade_no']=$o['order_code']; //"商户订单号";            $param['total_fee']=$o['order_amount']*100; //"金额,记得乘以100,微信支付单位默认分";//如$total_fee*100            $param["spbill_create_ip"] =$_SERVER['REMOTE_ADDR'];//客户端IP地址            $param["time_start"] = date("YmdHis");//请求开始时间            $param["time_expire"] = date("YmdHis", time() + 600);//请求超时时间 10分钟            $param["goods_tag"] = urldecode('运费:') . $o['postage']; //商品标签,自行填写            $param["notify_url"] = "http://".$_SERVER['HTTP_HOST']."/wxnotify/"; //自行定义异步通知url            $param["trade_type"] = "NATIVE";//扫码支付模式二            $param["product_id"] = $o['goods_id']; //正好有产品id就传了个,看文档说自己定义            //调用统一下单API接口            $result=$this->ci_wechatpay->unifiedOrder($param);//这里可以加日志输出,            // 写入日志            log::debug(json_encode($result));            //成功(return_code和result_code都为SUCCESS)就会返回含有带支付二维码链接的数据            $data=array();            if (isset($result["code_url"]) && !empty($result["code_url"])) {//二维码图片链接                $data['wxurl'] = $result["code_url"];                //这里传递商户订单号到扫码视图,是因为我想做跳转,根据商户号去查询订单是否支付成功,如果成功了就跳转,定时轮询微信服务器(这个谁有好的方法可以分享给我啊,表示感谢啦)                $data['orderno'] = $param['out_trade_no'];                // 写入日志                                $this->assign('time_expire',strtotime($param["time_expire"])); //订单失效时间                $this->assign('order_no',$data['orderno']);                $this->assign('wxurl',urlencode($data['wxurl'])); // 获取到的二维码地址                $this->display('wxpay/index.html');            }        }

    view/wxpay/index.html

    <!doctype html><html><head><meta charset="utf-8"><meta http-equiv="x-ua-compatible" content="ie=8" /><title>微信支付</title></head><body>    <div style="margin-left: 10px;color:#556B2F;font-size:30px;font-weight: bolder;">微信扫码支付测试</div><br/>    <img alt="模式二扫码支付" src="http://paysdk.weixin.qq.com/example/qrcode.php?data={{$wxurl}}" width="150"/>    <input type="hidden" name="orderNo" value="{{$order_no}}">    <input type="hidden" name="timeExpire" value="{{$time_expire}}"></body></html><script>    // 每3秒请求一次数据,然后判断,跳转     $(function(){    	timestamp = Date.parse( new Date())/1000; // 当前时间戳        orderno = $("input[name='orderNo']").val(); // 订单编号        timeExpire = $("input[name='timeExpire']").val(); // 订单失效时间        start = setInterval("checkstatus(orderno)", 3000);    });     function checkstatus(order_no){    	if(timestamp > timeExpire){  // 当前时间大于失效时间时,清除轮询    		window.clearInterval(start);    	}else{	   $.ajax({	       // 这里调用wechatpay.php中的orderQuery接口查询订单状态
    	       // 当返回值 trade_state == "SUCCESS"   这个时候可以修改你的订单状态了哦。
    	   });	        	}    }</script>


    OK!说的很细了,大家应该成功了吧。 欢迎大家发现问题并提出!共同解决。

    PHP编程

    郑重声明:本文版权归原作者所有,转载文章仅为传播更多信息之目的,如作者信息标记有误,请第一时间联系我们修改或删除,多谢。

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