PHP微信支付开发

1.开发环境
Thinkphp 3.2.3
微信:服务号,已认证
开发域名:http://test.paywechat.com (自定义的域名,外网不可访问)

2.需要相关文件和权限
微信支付需申请开通
微信公众平台开发者文档:http://mp.weixin.qq.com/wiki/home/index.html
微信支付开发者文档:https://pay.weixin.qq.com/wiki/doc/api/index.html
微信支付SDK下载地址:https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=11_1

3.开发
下载好微信支付PHP版本的SDK,文件目录为下图:
PHP微信支付开发

PHP微信支付开发
把微信支付SDK的Cert和Lib目录放入Thinkphp,目录为
PHP微信支付开发
现在介绍微信支付授权目录问题,首先是微信支付开发配置里面的支付授权目录填写,
PHP微信支付开发

然后填写JS接口安全域。
PHP微信支付开发

最后设置网页授权
PHP微信支付开发

PHP微信支付开发

这些设置完,基本完成一半,注意设置的目录和我thinkphp里面的目录。
PHP微信支付开发

4.微信支付配置

PHP微信支付开发

把相关配置填写正确。

/**
*   配置账号信息
*/

class WxPayConfig
{
    //=======【基本信息设置】=====================================
    //
    /**
     * 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:https://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:https://mp.weixin.qq.com/advanced/advanced?action=dev&t=advanced/dev&token=2005451881&lang=zh_CN
     * @var string
     */
    const APPID = ‘‘;
    const MCHID = ‘‘;
    const KEY = ‘‘;
    const APPSECRET = ‘‘;

    //=======【证书路径设置】=====================================
    /**
     * TODO:设置商户证书路径
     * 证书路径,注意应该填写绝对路径(仅退款、撤销订单时需要,可登录商户平台下载,
     * API证书下载地址:https://pay.weixin.qq.com/index.php/account/api_cert,下载之前需要安装商户操作证书)
     * @var path
     */
    const SSLCERT_PATH = ‘../cert/apiclient_cert.pem‘;
    const SSLKEY_PATH = ‘../cert/apiclient_key.pem‘;

    //=======【curl代理设置】===================================
    /**
     * TODO:这里设置代理机器,只有需要代理的时候才设置,不需要代理,请设置为0.0.0.0和0
     * 本例程通过curl使用HTTP POST方法,此处可修改代理服务器,
     * 默认CURL_PROXY_HOST=0.0.0.0和CURL_PROXY_PORT=0,此时不开启代理(如有需要才设置)
     * @var unknown_type
     */
    const CURL_PROXY_HOST = "0.0.0.0";//"10.152.18.220";
    const CURL_PROXY_PORT = 0;//8080;

    //=======【上报信息配置】===================================
    /**
     * TODO:接口调用上报等级,默认紧错误上报(注意:上报超时间为【1s】,上报无论成败【永不抛出异常】,
     * 不会影响接口调用流程),开启上报之后,方便微信监控请求调用的质量,建议至少
     * 开启错误上报。
     * 上报等级,0.关闭上报; 1.仅错误出错上报; 2.全量上报
     * @var int
     */
    const REPORT_LEVENL = 1;
}

现在开始贴出代码:

namespace Wechat\Controller;
use Think\Controller;
/**
 * 父类控制器,需要继承
 * @file ParentController.class.php
 * @author Gary <lizhiyong2204@sina.com>
 * @date 2015年8月4日
 * @todu
 */
class ParentController extends Controller { 
    protected $options = array (
            ‘token‘ => ‘‘, // 填写你设定的key
            ‘encodingaeskey‘ => ‘‘, // 填写加密用的EncodingAESKey
            ‘appid‘ => ‘‘, // 填写高级调用功能的app id
            ‘appsecret‘ => ‘‘, // 填写高级调用功能的密钥
            ‘debug‘ => false,
            ‘logcallback‘ => ‘‘
    );      
    public $errCode = 40001;   
    public $errMsg = "no access";  

    /**
     * 获取access_token
     * @return mixed|boolean|unknown
     */
    public function getToken(){
        $cache_token = S(‘exp_wechat_pay_token‘);
        if(!empty($cache_token)){
            return $cache_token;
        }
        $url = ‘https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s‘;
        $url = sprintf($url,$this->options[‘appid‘],$this->options[‘appsecret‘]);      
        $result = $this->http_get($url);
        $result = json_decode($result,true);  
        if(empty($result)){
            return false;
        }   
        S(‘exp_wechat_pay_token‘,$result[‘access_token‘],array(‘type‘=>‘file‘,‘expire‘=>3600));
        return $result[‘access_token‘];
    }

    /**
     * 发送客服消息
     * @param array $data 消息结构{"touser":"OPENID","msgtype":"news","news":{...}}
     */
    public function sendCustomMessage($data){
        $token = $this->getToken();
        if (empty($token)) return false;       
        $url = ‘https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=%s‘;
        $url = sprintf($url,$token);
        $result = $this->http_post($url,self::json_encode($data));
        if ($result)
        {
            $json = json_decode($result,true);
            if (!$json || !empty($json[‘errcode‘])) {
                $this->errCode = $json[‘errcode‘];
                $this->errMsg = $json[‘errmsg‘];
                return false;
            }
            return $json;
        }
        return false;
    }

    /**
     * 发送模板消息
     * @param unknown $data
     * @return boolean|unknown
     */
    public function sendTemplateMessage($data){
        $token = $this->getToken();
        if (empty($token)) return false;
        $url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=%s";
        $url = sprintf($url,$token);
        $result = $this->http_post($url,self::json_encode($data));
        if ($result)
        {
            $json = json_decode($result,true);
            if (!$json || !empty($json[‘errcode‘])) {
                $this->errCode = $json[‘errcode‘];
                $this->errMsg = $json[‘errmsg‘];
                return false;
            }
            return $json;
        }
        return false;
    }


    public function getFileCache($name){
        return S($name);
    }

    /**
     * 微信api不支持中文转义的json结构
     * @param array $arr
     */
    static function json_encode($arr) {
        $parts = array ();
        $is_list = false;
        //Find out if the given array is a numerical array
        $keys = array_keys ( $arr );
        $max_length = count ( $arr ) - 1;
        if (($keys [0] === 0) && ($keys [$max_length] === $max_length )) { //See if the first key is 0 and last key is length - 1
            $is_list = true;
            for($i = 0; $i < count ( $keys ); $i ++) { //See if each key correspondes to its position
                if ($i != $keys [$i]) { //A key fails at position check.
                    $is_list = false; //It is an associative array.
                    break;
                }
            }
        }
        foreach ( $arr as $key => $value ) {
            if (is_array ( $value )) { //Custom handling for arrays
                if ($is_list)
                    $parts [] = self::json_encode ( $value ); /* :RECURSION: */
                else
                    $parts [] = ‘"‘ . $key . ‘":‘ . self::json_encode ( $value ); /* :RECURSION: */
            } else {
                $str = ‘‘;
                if (! $is_list)
                    $str = ‘"‘ . $key . ‘":‘;
                //Custom handling for multiple data types
                if (!is_string ( $value ) && is_numeric ( $value ) && $value<2000000000)
                    $str .= $value; //Numbers
                elseif ($value === false)
                $str .= ‘false‘; //The booleans
                elseif ($value === true)
                $str .= ‘true‘;
                else
                    $str .= ‘"‘ . addslashes ( $value ) . ‘"‘; //All other things
                // :TODO: Is there any more datatype we should be in the lookout for? (Object?)
                $parts [] = $str;
            }
        }
        $json = implode ( ‘,‘, $parts );
        if ($is_list)
            return ‘[‘ . $json . ‘]‘; //Return numerical JSON
        return ‘{‘ . $json . ‘}‘; //Return associative JSON
    }

    /**
     +----------------------------------------------------------
     * 生成随机字符串
     +----------------------------------------------------------
     * @param int       $length  要生成的随机字符串长度
     * @param string    $type    随机码类型:0,数字+大小写字母;1,数字;2,小写字母;3,大写字母;4,特殊字符;-1,数字+大小写字母+特殊字符
     +----------------------------------------------------------
     * @return string
     +----------------------------------------------------------
     */
    static public function randCode($length = 5, $type = 2){
        $arr = array(1 => "0123456789", 2 => "abcdefghijklmnopqrstuvwxyz", 3 => "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 4 => "~@#$%^&*(){}[]|");
        if ($type == 0) {
            array_pop($arr);
            $string = implode("", $arr);
        } elseif ($type == "-1") {
            $string = implode("", $arr);
        } else {
            $string = $arr[$type];
        }
        $count = strlen($string) - 1;
        $code = ‘‘;
        for ($i = 0; $i < $length; $i++) {
            $code .= $string[rand(0, $count)];
        }
        return $code;
    }   


    /**
     * GET 请求
     * @param string $url
     */
    private function http_get($url){
        $oCurl = curl_init();
        if(stripos($url,"https://")!==FALSE){
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
        }
        curl_setopt($oCurl, CURLOPT_URL, $url);
        curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
        $sContent = curl_exec($oCurl);
        $aStatus = curl_getinfo($oCurl);
        curl_close($oCurl);
        if(intval($aStatus["http_code"])==200){
            return $sContent;
        }else{
            return false;
        }
    }

    /**
     * POST 请求
     * @param string $url
     * @param array $param
     * @param boolean $post_file 是否文件上传
     * @return string content
     */
    private function http_post($url,$param,$post_file=false){
        $oCurl = curl_init();
        if(stripos($url,"https://")!==FALSE){
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, false);
            curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
        }
        if (is_string($param) || $post_file) {
            $strPOST = $param;
        } else {
            $aPOST = array();
            foreach($param as $key=>$val){
                $aPOST[] = $key."=".urlencode($val);
            }
            $strPOST =  join("&", $aPOST);
        }
        curl_setopt($oCurl, CURLOPT_URL, $url);
        curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt($oCurl, CURLOPT_POST,true);
        curl_setopt($oCurl, CURLOPT_POSTFIELDS,$strPOST);
        $sContent = curl_exec($oCurl);
        $aStatus = curl_getinfo($oCurl);
        curl_close($oCurl);
        if(intval($aStatus["http_code"])==200){
            return $sContent;
        }else{
            return false;
        }
    }
}

namespace Wechat\Controller;
use Wechat\Controller\ParentController;
/**
 * 微信支付测试控制器
 * @file TestController.class.php
 * @author Gary <lizhiyong2204@sina.com>
 * @date 2015年8月4日
 * @todu
 */
class TestController extends ParentController {
    private $_order_body       = ‘xxx‘;
    private $_order_goods_tag  = ‘xxx‘;
    public function __construct(){
        parent::__construct();
        require_once ROOT_PATH."Api/lib/WxPay.Api.php";
        require_once ROOT_PATH."Api/lib/WxPay.JsApiPay.php";
    }

    public function index(){
        //①、获取用户openid
        $tools = new \JsApiPay();
        $openId = $tools->GetOpenid();       
        //②、统一下单
        $input = new \WxPayUnifiedOrder();     
        //商品描述
        $input->SetBody($this->_order_body);
        //附加数据,可以添加自己需要的数据,微信回异步回调时会附加这个数据
        $input->SetAttach(‘xxx‘);
        //商户订单号
        $out_trade_no = \WxPayConfig::MCHID.date("YmdHis");
        $input->SetOut_trade_no($out_trade_no);
        //总金额,订单总金额,只能为整数,单位为分      
        $input->SetTotal_fee(1);
        //交易起始时间
        $input->SetTime_start(date("YmdHis"));
        //交易结束时间
        $input->SetTime_expire(date("YmdHis", time() + 600));
        //商品标记
        $input->SetGoods_tag($this->_order_goods_tag);
        //通知地址,接收微信支付异步通知回调地址 SITE_URL=http://test.paywechat.com/Charge
        $notify_url = SITE_URL.‘/index.php/Test/notify.html‘;
        $input->SetNotify_url($notify_url);
        //交易类型
        $input->SetTrade_type("JSAPI");
        $input->SetOpenid($openId);
        $order = \WxPayApi::unifiedOrder($input);
        $jsApiParameters = $tools->GetJsApiParameters($order);
        //获取共享收货地址js函数参数
        $editAddress = $tools->GetEditAddressParameters();

        $this->assign(‘openId‘,$openId);
        $this->assign(‘jsApiParameters‘,$jsApiParameters);
        $this->assign(‘editAddress‘,$editAddress);
        $this->display();      
    }

    /**
     * 异步通知回调方法
     */
    public function notify(){
        require_once ROOT_PATH."Api/lib/notify.php";
        $notify = new \PayNotifyCallBack();
        $notify->Handle(false);
        //这里的IsSuccess是我自定义的一个方法,后面我会贴出这个文件的代码,供参考。
        $is_success = $notify->IsSuccess();  
        $bdata 		= $is_success[‘data‘];   
        //支付成功
        if($is_success[‘code‘] == 1){          
            $news = array(
                    ‘touser‘ => $bdata[‘openid‘],
                    ‘msgtype‘ => ‘news‘,
                    ‘news‘  => array (
                            ‘articles‘=> array (
                                    array(
                                            ‘title‘ => ‘订单支付成功‘,
                                            ‘description‘ => "支付金额:{$bdata[‘total_fee‘]}\n".
                                            "微信订单号:{$bdata[‘transaction_id‘]}\n"
                                            ‘picurl‘ => ‘‘,
                                            ‘url‘ => ‘‘         
                                    )

                            )
                    )
            );
            //发送微信支付通知
            $this->sendCustomMessage($news);            
        }else{//支付失败

        }
    }

    /**
     * 支付成功页面
     * 不可靠的回调
     */
    public function ajax_PaySuccess(){
        //订单号
        $out_trade_no = I(‘post.out_trade_no‘);
        //支付金额
        $total_fee    = I(‘post.total_fee‘);
        /*相关逻辑处理*/

    }

贴上模板HTML

<html>
<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8"/>
    <meta name="viewport" content="width=device-width, initial-scale=1"/> 
    <title>微信支付样例-支付</title>
    <script type="text/javascript">
    //调用微信JS api 支付
    function jsApiCall()
    {
        WeixinJSBridge.invoke(
            ‘getBrandWCPayRequest‘,
            {$jsApiParameters},
            function(res){
                WeixinJSBridge.log(res.err_msg);
                //取消支付
                if(res.err_msg == ‘get_brand_wcpay_request:cancel‘){
                //处理取消支付的事件逻辑
                }else if(res.err_msg == "get_brand_wcpay_request:ok"){
                /*使用以上方式判断前端返回,微信团队郑重提示:
                res.err_msg将在用户支付成功后返回    ok,但并不保证它绝对可靠。
                这里可以使用Ajax提交到后台,处理一些日志,如Test控制器里面的ajax_PaySuccess方法。
                */
                }
                alert(res.err_code+res.err_desc+res.err_msg);
            }
        );
    }

    function callpay()
    {
        if (typeof WeixinJSBridge == "undefined"){
            if( document.addEventListener ){
                document.addEventListener(‘WeixinJSBridgeReady‘, jsApiCall, false);
            }else if (document.attachEvent){
                document.attachEvent(‘WeixinJSBridgeReady‘, jsApiCall); 
                document.attachEvent(‘onWeixinJSBridgeReady‘, jsApiCall);
            }
        }else{
            jsApiCall();
        }
    }
    //获取共享地址
    function editAddress()
    {
        WeixinJSBridge.invoke(
            ‘editAddress‘,
            {$editAddress},
            function(res){
                var value1 = res.proviceFirstStageName;
                var value2 = res.addressCitySecondStageName;
                var value3 = res.addressCountiesThirdStageName;
                var value4 = res.addressDetailInfo;
                var tel = res.telNumber;                
                alert(value1 + value2 + value3 + value4 + ":" + tel);
            }
        );
    }

    window.onload = function(){
        if (typeof WeixinJSBridge == "undefined"){
            if( document.addEventListener ){
                document.addEventListener(‘WeixinJSBridgeReady‘, editAddress, false);
            }else if (document.attachEvent){
                document.attachEvent(‘WeixinJSBridgeReady‘, editAddress); 
                document.attachEvent(‘onWeixinJSBridgeReady‘, editAddress);
            }
        }else{
            editAddress();
        }
    };

    </script>
</head>
<body>
    <br/>
    <font color="#9ACD32"><b>该笔订单支付金额为<span style="color:#f00;font-size:50px">1分</span></b></font><br/><br/>
    <div align="center">
        <button style="width:210px; height:50px; border-radius: 15px;background-color:#FE6714; border:0px #FE6714 solid; cursor: pointer;  color:white;  font-size:16px;" type="button" onclick="callpay()" >立即支付</button>
    </div>
</body>
</html>

notify.php文件代码,这里有在官方文件里新添加的一个自定义方法。


require_once ROOT_PATH."Api/lib/WxPay.Api.php";
require_once ROOT_PATH.‘Api/lib/WxPay.Notify.php‘;
require_once ROOT_PATH.‘Api/lib/log.php‘;

//初始化日志
$logHandler= new \CLogFileHandler(ROOT_PATH."/logs/".date(‘Y-m-d‘).‘.log‘);
$log = \Log::Init($logHandler, 15);

class PayNotifyCallBack extends WxPayNotify
{
    protected $para = array(‘code‘=>0,‘data‘=>‘‘);
    //查询订单
    public function Queryorder($transaction_id)
    {
        $input = new \WxPayOrderQuery();
        $input->SetTransaction_id($transaction_id);
        $result = \WxPayApi::orderQuery($input);
        \Log::DEBUG("query:" . json_encode($result));
        if(array_key_exists("return_code", $result)
            && array_key_exists("result_code", $result)
            && $result["return_code"] == "SUCCESS"
            && $result["result_code"] == "SUCCESS")
        {
            return true;
        }
        $this->para[‘code‘] = 0;
        $this->para[‘data‘] = ‘‘;
        return false;
    }

    //重写回调处理函数
    public function NotifyProcess($data, &$msg)
    {
        \Log::DEBUG("call back:" . json_encode($data));
        $notfiyOutput = array();

        if(!array_key_exists("transaction_id", $data)){
            $msg = "输入参数不正确";
            $this->para[‘code‘] = 0;
            $this->para[‘data‘] = ‘‘;
            return false;
        }
        //查询订单,判断订单真实性
        if(!$this->Queryorder($data["transaction_id"])){
            $msg = "订单查询失败";
            $this->para[‘code‘] = 0;
            $this->para[‘data‘] = ‘‘;
            return false;
        }

        $this->para[‘code‘] = 1;
        $this->para[‘data‘] = $data;
        return true;
    }

    /**
     * 自定义方法 检测微信端是否回调成功方法
     * @return multitype:number string
     */
    public function IsSuccess(){
        return $this->para;
    }
}

到这里基本上完成,可以在微信端打开http://test.paywechat.com/Charge/index.php/Test/index/
我的环境,HTTP服务器没有重写url,微信支付继续探索中,有些地方可能写的有问题或不足,望大家谅解,互相学习。

版权声明:本文为博主原创文章,未经博主允许不得转载。

PHP微信支付开发

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