丰满熟妇乱又伦,成人亚洲欧美久久久久,99国产精品99久久久久久

?? ???

?? ??

H5 ?? WeChat ?? ??? ?? ??? ??

高洛峰

Feb 13, 2017 pm 01:23 PM

???? ???? WeChat?? ? ???? ?? WeChat Pay? ???? ?? ??? ?? ??? ??? ? ????. ?, ?? ??? H5? jsApi ?????? ?? ?????. ?? ???. ?? WeChat ?? ????? WeChat ?? ?? ???? ?? ?? ??? ??? ??? ??? ?? ??? ????. ?? ??? ??? ?? ????? ? ?? ????? ??? ?? ??? ? ????.

1. ??

WeChat ?? ?????? ?? ??? ???? ???? ??? ?????? ??, ?? ?? ??? ???? ??? ???? ??? ?? ??? ???. ? ?? ??? ???? ? ?? ??? ???? ???? ??? ??? ? ??? ?? ????? ??? ?? ??? ??? ???? ??? ?????. .?? ??? ?????(1?, 3?, 5?...). ??? ?? ??? ??? ?? ??? ??? ? ????. ?? ??? 3?? ??? ??? 1?? ??? ???? ?? ? ????. ??? ???? ?? ??? ??? ??? ? ???? ???? ? ? ????. ??? ???? ???? ? ??? ?? ???) ??, ?? ??? ??? ??? ???? ???? ?? ????? ???? ?? ???? ??? ????? ???? ??? ??? ???? ??? ??? ??? ??? ? ?? ????. ??? ?? ???? ??? ???? ????? ???? ?? ??? ?? ? ????. ??, ?? ????? ??? ???? ??? ???? ??? ???? ??? ? ?? ?? ????? ??? ?? ???? ???? ????.

? ??? ?? ??? ???? ?? ???????.

?? ?? ?? ??? N??? ????. ?? ??? ??? ?? ??, ?? ?? ??, ?? ?? ??, APP ?? ?? ????. ? ??? ???? ???? ??? ??????, ????? ??? ???????. ?? ?? ?? ?????? ?? ????? ????? ? ??? ????? ??? ?? ????? ????? ??? ?????. ?? ?? ?? ?????? ?? ??? ? ????.

基于H5的微信支付開發(fā)詳解

2. ????? ?? ??? ??

??? ?? WeChat ?? ????? ???? ???? ???? ?? ?????? ??? ? ????. ?? ????? ??? ????. ?? ??????? ??? ???? ???? ??? ? ??? ?????(?: ???? WeChat ?? ??? ??). ???? ??? ???? ???? ??? ?????. ?? ?? ?? ?????? ???? WeChat ?? ???? ??? ???? WeChat ?? ???? ??? ?? ? ?? ??? ?????. ??? ???? ???? ?? ID(prepay_id, ??? ???? ? ??). ?? ????? WeChat ??? ????. ???? ??? ? prepay_id? ??? ? ????? WeChat ??? ??? ????? ?????. ??? ??? ????? ??????? ?????. ?? ?????? ?? ?? ???? ?? ??? ?? ? ????. ?? JSAPI ?????? ???? WeChat ?? ???? ?? ??? ?????. .WeChat ?? ????? ??? ?? ???? ??? ? ????? ????? ???? ????, ??? ?? WeChat ?? ????? ?? ?????. ?? ??? ?????. , ??? WeChat? H5 ???? ?????. ?? ? ??? ????? ?? ??? ?????? ??? ????(?: ??? ?? ??? ??? ? ??? ??? ?? ?? ??). , ?? ?? ?????? ??, ???? ??? ????? ???? ?? ????? ?? ??? ?????? ???.

基于H5的微信支付開發(fā)詳解

3. ?? ??

? ?? ??? php5.6 + MySQL + Redis + Linux + Apache? ????, ??? ????? Framework? CI( ??? ??? ??? ? ??? ??? ??? ??? ?????? ?? ??? ?? ????. ??? ??? ?? ???? ??? ? ????.

?? ?? ?????? ?? ??? ?? ????????. ???? ??? ?? ??? ? ??? ???? ???????. ?? ?? ?? ??? ??? ???? ? ????. ??? ?? ?? ????? ????? ? ??? ????? ?? ?????(???? ?? WeChat ???? ???? ???? ????).

1. ????? ??? ?? ??

??? ? ?? ??? ?? ??? ???. ?, ?? ?? ?????? ????? WeChat ???? openid? ?????(??? ??? , https://pay .weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1 ??), openid? ???? ?? ??? ??? ???(??? ??? WeChat ??? ????? ??). ??? ??? ????

Wxpay.php文件：
<?php
defined(&#39;BASEPATH&#39;) OR exit(&#39;No direct script access allowed&#39;);

class Wxpay extends MY_Controller {
    public function __construct() {
        parent::__construct();
        $this->load->model('wxpay_model');
????????//$this->load->model('wxpay');
????????
????}
?
????public?function?index()?{
????????//微信支付
????????$this->smarty['wxPayUrl']?=?$this->wxpay_model->retWxPayUrl();
????????$this->displayView('wxpay/index.tpl');
????}
}

URL? ???? ???.

　　在這先看看model里所寫的幾個類：model里有幾個類：微信支付類、統(tǒng)一下單接口類、響應(yīng)型接口基類、請求型接口基類、所有接口基類、配置類。為何要分那么多類而不在一個類里實現(xiàn)所有的方法的，因為，這樣看起來代碼邏輯清晰，哪個類該干嘛就干嘛。

　　這里我直接附上model的代碼了,里面基本上每一個類每一個方法甚至每一行代碼都會有解釋的了，這里我就不對其展開一句句分析了：

??<?php
defined(&#39;BASEPATH&#39;) OR exit(&#39;No direct script access allowed&#39;);

class Wxpay_model extends CI_Model {
    public function __construct() {
        parent::__construct();
    }
    
    /**
     * 返回可以獲得微信code的URL （用以獲取openid）
     * @return [type] [description]
     */
    public function retWxPayUrl() {
        $jsApi = new JsApi_handle();
        return $jsApi->createOauthUrlForCode();
????}
?
????/**
?????*?微信jsapi點擊支付
?????*?@param??[type]?$data?[description]
?????*?@return?[type]???????[description]
?????*/
????public?function?wxPayJsApi($data)?{
????????$jsApi?=?new?JsApi_handle();
????????//統(tǒng)一下單接口所需數(shù)據(jù)
????????$payData?=?$this->returnData($data);
????????//獲取code碼，用以獲取openid
????????$code?=?$_GET['code'];
????????$jsApi->setCode($code);
????????//通過code獲取openid
????????$openid?=?$jsApi->getOpenId();
????????
????????$unifiedOrderResult?=?null;
????????if?($openid?!=?null)?{
????????????//取得統(tǒng)一下單接口返回的數(shù)據(jù)
????????????$unifiedOrderResult?=?$this->getResult($payData,?'JSAPI',?$openid);
????????????//獲取訂單接口狀態(tài)
????????????$returnMessage?=?$this->returnMessage($unifiedOrder,?'prepay_id');
????????????if?($returnMessage['resultCode'])?{
????????????????$jsApi->setPrepayId($retuenMessage['resultField']);
????????????????//取得wxjsapi接口所需要的數(shù)據(jù)
????????????????$returnMessage['resultData']?=?$jsApi->getParams();
????????????}?

????????????return?$returnMessage;
????????}
????}

????/**
?????*?統(tǒng)一下單接口所需要的數(shù)據(jù)
?????*?@param??[type]?$data?[description]
?????*?@return?[type]???????[description]
?????*/
????public?function?returnData($data)?{
????????$payData['sn']?=?$data['sn'];
????????$payData['body']?=?$data['goods_name'];
????????$payData['out_trade_no']?=?$data['order_no'];
????????$payData['total_fee']?=?$data['fee'];
????????$payData['attach']?=?$data['attach'];

????????return?$payData;
????}

????/**
?????*?返回統(tǒng)一下單接口結(jié)果?（參考https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1）
?????*?@param??[type]?$payData????[description]
?????*?@param??[type]?$trade_type?[description]
?????*?@param??[type]?$openid?????[description]
?????*?@return?[type]?????????????[description]
?????*/
????public?function?getResult($payData,?$trade_type,?$openid?=?null)?{
????????$unifiedOrder?=?new?UnifiedOrder_handle();

????????if?($opneid?!=?null)?{
????????????$unifiedOrder->setParam('openid',?$openid);
????????}
????????$unifiedOrder->setParam('body',?$payData['body']);??//商品描述
????????$unifiedOrder->setParam('out_trade_no',?$payData['out_trade_no']);?//商戶訂單號
????????$unifiedOrder->setParam('total_fee',?$payData['total_fee']);????//總金額
????????$unifiedOrder->setParam('attach',?$payData['attach']);??//附加數(shù)據(jù)
????????$unifiedOrder->setParam('notify_url',?base_url('/Wxpay/pay_callback'));//通知地址
????????$unifiedOrder->setParam('trade_type',?$trade_type);?//交易類型

????????//非必填參數(shù)，商戶可根據(jù)實際情況選填
????????//$unifiedOrder->setParam("sub_mch_id","XXXX");//子商戶號
????????//$unifiedOrder->setParam("device_info","XXXX");//設(shè)備號
????????//$unifiedOrder->setParam("time_start","XXXX");//交易起始時間
????????//$unifiedOrder->setParam("time_expire","XXXX");//交易結(jié)束時間
????????//$unifiedOrder->setParam("goods_tag","XXXX");//商品標(biāo)記
????????//$unifiedOrder->setParam("product_id","XXXX");//商品ID
????????
????????return?$unifiedOrder->getResult();
????}

????/**
?????*?返回微信訂單狀態(tài)
?????*/
????public?function?returnMessage($unifiedOrderResult,$field){
????????$arrMessage=array("resultCode"=>0,"resultType"=>"獲取錯誤","resultMsg"=>"該字段為空");
????????if($unifiedOrderResult==null){
????????????$arrMessage["resultType"]="未獲取權(quán)限";
????????????$arrMessage["resultMsg"]="請重新打開頁面";
????????}elseif?($unifiedOrderResult["return_code"]?==?"FAIL")
????????{
????????????$arrMessage["resultType"]="網(wǎng)絡(luò)錯誤";
????????????$arrMessage["resultMsg"]=$unifiedOrderResult['return_msg'];
????????}
????????elseif($unifiedOrderResult["result_code"]?==?"FAIL")
????????{
????????????$arrMessage["resultType"]="訂單錯誤";
????????????$arrMessage["resultMsg"]=$unifiedOrderResult['err_code_des'];
????????}
????????elseif($unifiedOrderResult[$field]?!=?NULL)
????????{
????????????$arrMessage["resultCode"]=1;
????????????$arrMessage["resultType"]="生成訂單";
????????????$arrMessage["resultMsg"]="OK";
????????????$arrMessage["resultField"]?=?$unifiedOrderResult[$field];
????????}
????????return?$arrMessage;
????}

????/**
?????*?微信回調(diào)接口返回??驗證簽名并回應(yīng)微信
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?wxPayNotify($xml)?{
????????$notify?=?new?Wxpay_server();
????????$notify->saveData($xml);
????????//驗證簽名，并回復(fù)微信
????????//對后臺通知交互時，如果微信收到商戶的應(yīng)答不是成功或者超時，微信認(rèn)為通知失敗
????????//微信會通過一定的策略（如30分鐘共8次），定期重新發(fā)起通知
????????if?($notify->checkSign()?==?false)?{
????????????$notify->setReturnParameter("return_code","FAIL");//返回狀態(tài)碼
????????????$notify->setReturnParameter("return_msg","簽名失敗");//返回信息
????????}?else?{
????????????$notify->checkSign=TRUE;
????????????$notify->setReturnParameter("return_code","SUCCESS");//設(shè)置返回碼
????????}

????????return?$notify;
????}
}

/**
*?JSAPI支付——H5網(wǎng)頁端調(diào)起支付接口
*/
class?JsApi_handle?extends?JsApi_common?{
????public?$code;//code碼，用以獲取openid
????public?$openid;//用戶的openid
????public?$parameters;//jsapi參數(shù)，格式為json
????public?$prepay_id;//使用統(tǒng)一支付接口得到的預(yù)支付id
????public?$curl_timeout;//curl超時時間

????function?__construct()
????{
????????//設(shè)置curl超時時間
????????$this->curl_timeout?=?WxPayConf::CURL_TIMEOUT;
????}

????/**
?????*?生成獲取code的URL
?????*?@return?[type]?[description]
?????*/
????public?function?createOauthUrlForCode()?{
????????//重定向URL
????????$redirectUrl?=?"http://www.itcen.cn/wxpay/confirm/".$orderId."?showwxpaytitle=1";
????????$urlParams['appid']?=?WxPayConf::APPID;
????????$urlParams['redirect_uri']?=?$redirectUrl;
????????$urlParams['response_type']?=?'code';
????????$urlParams['scope']?=?'snsapi_base';
????????$urlParams['state']?=?"STATE"."#wechat_redirect";
????????//拼接字符串
????????$queryString?=?$this->ToUrlParams($urlParams,?false);
????????return?"https://open.weixin.qq.com/connect/oauth2/authorize?".$queryString;
????}

????/**
?????*?設(shè)置code
?????*?@param?[type]?$code?[description]
?????*/
????public?function?setCode($code)?{
????????$this->code?=?$code;
????}

????/**
?????*??作用：設(shè)置prepay_id
?????*/
????public?function?setPrepayId($prepayId)
????{
????????$this->prepay_id?=?$prepayId;
????}

????/**
?????*??作用：獲取jsapi的參數(shù)
?????*/
????public?function?getParams()
????{
????????$jsApiObj["appId"]?=?WxPayConf::APPID;
????????$timeStamp?=?time();
????????$jsApiObj["timeStamp"]?=?"$timeStamp";
????????$jsApiObj["nonceStr"]?=?$this->createNoncestr();
????????$jsApiObj["package"]?=?"prepay_id=$this->prepay_id";
????????$jsApiObj["signType"]?=?"MD5";
????????$jsApiObj["paySign"]?=?$this->getSign($jsApiObj);
????????$this->parameters?=?json_encode($jsApiObj);

????????return?$this->parameters;
????}

????/**
?????*?通過curl?向微信提交code?用以獲取openid
?????*?@return?[type]?[description]
?????*/
????public?function?getOpenId()?{
????????//創(chuàng)建openid?的鏈接
????????$url?=?$this->createOauthUrlForOpenid();
????????//初始化
????????$ch?=?curl_init();
????????curl_setopt($ch,?CURL_TIMEOUT,?$this->curl_timeout);
????????curl_setopt($ch,?CURL_URL,?$url);
????????curl_setopt($ch,?CURL_SSL_VERIFYPEER,?FALSE);
????????curl_setopt($ch,?CURL_SSL_VERIFYHOST,?FALSE);
????????curl_setopt($ch,?CURL_HEADER,?FALSE);
????????curl_setopt($ch,?CURL_RETURNTRANSFER,?TRUE);
????????//執(zhí)行curl
????????$res?=?curl_exec($ch);
????????curl_close($ch);
????????//取出openid
????????$data?=?json_decode($res);
????????if?(isset($data['openid']))?{
????????????$this->openid?=?$data['openid'];
????????}?else?{
????????????return?null;
????????}

????????return?$this->openid;

????}

????/**
?????*?生成可以獲取openid?的URL
?????*?@return?[type]?[description]
?????*/
????public?function?createOauthUrlForOpenid()?{
????????$urlParams['appid']?=?WxPayConf::APPID;
????????$urlParams['secret']?=?WxPayConf::APPSECRET;
????????$urlParams['code']?=?$this->code;
????????$urlParams['grant_type']?=?"authorization_code";
????????$queryString?=?$this->ToUrlParams($urlParams,?false);
????????return?"https://api.weixin.qq.com/sns/oauth2/access_token?".$queryString;
????}
}

/**
?*?統(tǒng)一下單接口類
?*/
class?UnifiedOrder_handle?extends?Wxpay_client_handle?{
????public?function?__construct()?{
????????//設(shè)置接口鏈接
????????$this->url?=?"https://api.mch.weixin.qq.com/pay/unifiedorder";
????????//設(shè)置curl超時時間
????????$this->curl_timeout?=?WxPayConf::CURL_TIMEOUT;
????}

}

/**
?*?響應(yīng)型接口基類
?*/
class?Wxpay_server_handle?extends?JsApi_common{
????public?$data;?//接收到的數(shù)據(jù)，類型為關(guān)聯(lián)數(shù)組
????public?$returnParams;???//返回參數(shù)，類型為關(guān)聯(lián)數(shù)組

????/**
?????*?將微信請求的xml轉(zhuǎn)換成關(guān)聯(lián)數(shù)組
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?saveData($xml)?{
????????$this->data?=?$this->xmlToArray($xml);?
????}


????/**
?????*?驗證簽名
?????*?@return?[type]?[description]
?????*/
????public?function?checkSign()?{
????????$tmpData?=?$this->data;
????????unset($temData['sign']);
????????$sign?=?$this->getSign($tmpData);
????????if?($this->data['sign']?==?$sign)?{
????????????return?true;
????????}
????????return?false;
????}


????/**
?????*?設(shè)置返回微信的xml數(shù)據(jù)
?????*/
????function?setReturnParameter($parameter,?$parameterValue)
????{
????????$this->returnParameters[$this->trimString($parameter)]?=?$this->trimString($parameterValue);
????}

????/**
?????*?將xml數(shù)據(jù)返回微信
?????*/
????function?returnXml()
????{
????????$returnXml?=?$this->createXml();
????????return?$returnXml;
????}

}

/**
?*?請求型接口的基類
?*/
class?Wxpay_client_handle?extends?JsApi_common{
????public?$params;?//請求參數(shù)，類型為關(guān)聯(lián)數(shù)組
????public?$response;?//微信返回的響應(yīng)
????public?$result;?//返回參數(shù)，類型類關(guān)聯(lián)數(shù)組
????public?$url;?//接口鏈接
????public?$curl_timeout;?//curl超時時間

????/**
?????*?設(shè)置請求參數(shù)
?????*?@param?[type]?$param??????[description]
?????*?@param?[type]?$paramValue?[description]
?????*/
????public?function?setParam($param,?$paramValue)?{
????????$this->params[$this->tirmString($param)]?=?$this->trimString($paramValue);
????}

????/**
?????*?獲取結(jié)果，默認(rèn)不使用證書
?????*?@return?[type]?[description]
?????*/
????public?function?getResult()?{
????????$this->postxml();?
????????$this->result?=?$this->xmlToArray($this->response);

????????return?$this->result;
????}

????/**
?????*?post請求xml
?????*?@return?[type]?[description]
?????*/
????public?function?postxml()?{
????????$xml?=?$this->createXml();
????????$this->response?=?$this->postXmlCurl($xml,?$this->curl,?$this->curl_timeout);

????????return?$this->response;
????}

????public?function?createXml()?{
????????$this->params['appid']?=?WxPayConf::APPID;?//公眾號ID
????????$this->params['mch_id']?=?WxPayConf::MCHID;?//商戶號
????????$this->params['nonce_str']?=?$this->createNoncestr();???//隨機字符串
????????$this->params['sign']?=?$this->getSign($this->params);??//簽名
????????
????????return?$this->arrayToXml($this->params);?
????}

????

}

/**
?*?所有接口的基類
?*/
class?JsApi_common?{
????function?__construct()?{

????}

????public?function?trimString($value)?{
????????$ret?=?null;
????????if?(null?!=?$value)?{
????????????$ret?=?trim($value);
????????????if?(strlen($ret)?==?0)?{
????????????????$ret?=?null;
????????????}
????????}?
????????return?$ret;
????}

????/**
?????*?產(chǎn)生隨機字符串，不長于32位
?????*?@param??integer?$length?[description]
?????*?@return?[type]??????????[description]
?????*/
????public?function?createNoncestr($length?=?32)?{
????????$chars?=?"abcdefghijklmnopqrstuvwxyz0123456789";
????????$str?=?'';
????????for?($i?=?0;?$i?< $length; $i++) {
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }

        return $str;
    }

    /**
     * 格式化參數(shù) 拼接字符串，簽名過程需要使用
     * @param [type] $urlParams     [description]
     * @param [type] $needUrlencode [description]
     */
    public function ToUrlParams($urlParams, $needUrlencode) {
        $buff = "";
        ksort($urlParams);

        foreach ($urlParams as $k =>?$v)?{
????????????if($needUrlencode)?$v?=?urlencode($v);
????????????$buff?.=?$k?.'='.?$v?.'&';
????????}

????????$reqString?=?'';
????????if?(strlen($buff)?>?0)?{
????????????$reqString?=?substr($buff,?0,?strlen($buff)?-?1);
????????}

????????return?$reqString;
????}

????/**
?????*?生成簽名
?????*?@param??[type]?$params?[description]
?????*?@return?[type]?????????[description]
?????*/
????public?function?getSign($obj)?{
????????foreach?($obj?as?$k?=>?$v)?{
????????????$params[$k]?=?$v;
????????}
????????//簽名步驟一：按字典序排序參數(shù)
????????ksort($params);
????????$str?=?$this->ToUrlParams($params,?false);??
????????//簽名步驟二：在$str后加入key
????????$str?=?$str."$key=".WxPayConf::KEY;
????????//簽名步驟三：md5加密
????????$str?=?md5($str);
????????//簽名步驟四：所有字符轉(zhuǎn)為大寫
????????$result?=?strtoupper($str);

????????return?$result;
????}

????/**
?????*?array轉(zhuǎn)xml
?????*?@param??[type]?$arr?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?arrayToXml($arr)?{
????????$xml?=?"<xml>";
????????foreach?($arr?as?$k?=>?$v)?{
????????????if?(is_numeric($val))?{
????????????????$xml?.=?"<".$key.">".$key."</".$key.">";
????????????}?else?{
????????????????$xml?.=?"<".$key."><![CDATA[".$val."]]></".$key.">";
????????????}
????????}
????????$xml?.=?"</xml>";
????????return?$xml;
????}

????/**
?????*?將xml轉(zhuǎn)為array
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?xmlToArray($xml)?{
????????$arr?=?json_decode(json_encode(simplexml_load_string($xml,?'SinpleXMLElement',?LIBXML_NOCDATA)),?true);

????????return?$arr;
????}

????/**
?????*?以post方式提交xml到對應(yīng)的接口
?????*?@param??[type]??$xml????[description]
?????*?@param??[type]??$url????[description]
?????*?@param??integer?$second?[description]
?????*?@return?[type]??????????[description]
?????*/
????public?function?postXmlCurl($xml,?$url,?$second?=?30)?{
????????//初始化curl
????????$ch?=?curl_init();
????????//設(shè)置超時
????????curl_setopt($ch,?CURL_TIMEOUT,?$second);
????????curl_setopt($ch,?CURL_URL,?$url);
????????//這里設(shè)置代理，如果有的話
????????//curl_setopt($ch,CURLOPT_PROXY,?'8.8.8.8');
????????//curl_setopt($ch,CURLOPT_PROXYPORT,?8080);
????????curl_setopt($ch,?CURL_SSL_VERIFYHOST,?FALSE);
????????curl_setopt($ch,?CURL_SSL_VERIFYPEER,?FALSE);
????????//設(shè)置header
????????curl_setopt($ch,?CURL_HEADER,?FALSE);
????????//要求結(jié)果為字符串且輸出到屏幕上
????????curl_setopt($ch,?CURL_RETURNTRANSFER,?TRUE);
????????//以post方式提交
????????curl_setopt($ch,?CURL_POST,?TRUE);
????????curl_setopt($ch,?CURL_POSTFIELDS,?$xml);
????????//執(zhí)行curl
????????$res?=?curl_exec($ch);

????????if?($res)?{
????????????curl_close($ch);
????????????return?$res;
????????}?else?{
????????????$error?=?curl_errno($ch);
????????????echo?"curl出錯，錯誤碼:$error"."<br>";
????????????echo?"<a href=&#39;http://curl.haxx.se/libcurl/c/libcurl-errors.html&#39;>錯誤原因查詢</a></br>";
????????????curl_close($ch);
????????????return?false;
????????}
????}
}

/**
?*?配置類
?*/
class?WxPayConf?{
????//微信公眾號身份的唯一標(biāo)識。
????const?APPID?=?'wx654a22c6423213b7';
????//受理商ID，身份標(biāo)識
????const?MCHID?=?'10043241';
????const?MCHNAME?=?'KellyCen的博客';
????
????//商戶支付密鑰Key。
????const?KEY?=?'0000000000000000000000000000000';
????//JSAPI接口中獲取openid
????const?APPSECRET?=?'000000000000000000000000000';

????//證書路徑,注意應(yīng)該填寫絕對路徑
????const?SSLCERT_PATH?=?'/home/WxPayCacert/apiclient_cert.pem';
????const?SSLKEY_PATH?=?'/home/WxPayCacert/apiclient_key.pem';
????const?SSLCA_PATH?=?'/home/WxPayCacert/rootca.pem';

????//本例程通過curl使用HTTP?POST方法，此處可修改其超時時間，默認(rèn)為30秒
????const?CURL_TIMEOUT?=?30;
}

Wxpay_model.php

Wxpay_model.php

?　　獲取到code的URL后，將其分配到頁面去，讓用戶去點擊，用戶進行點擊后，就會從微信服務(wù)器獲取到code，然后回調(diào)到redirect_uri所指的地址去。

　　2、獲取到code后，會回調(diào)到redirect_uri所指向的地址去，這里是到了/Wxpay/confirm/，看看這個confirm方法是打算干嘛的：

/**
?????*?手機端微信支付，此處是授權(quán)獲取到code時的回調(diào)地址
?????*?@param??[type]?$orderId?訂單編號id
?????*?@return?[type]??????????[description]
?????*/?
????public?function?confirm($orderId)?{
????????//先確認(rèn)用戶是否登錄
????????$this->ensureLogin();
????????//通過訂單編號獲取訂單數(shù)據(jù)
????????$order?=?$this->wxpay_model->get($orderId);
????????//驗證訂單是否是當(dāng)前用戶
????????$this->_verifyUser($order);

????????//取得支付所需要的訂單數(shù)據(jù)
????????$orderData?=?$this->returnOrderData[$orderId];
????????//取得jsApi所需要的數(shù)據(jù)
????????$wxJsApiData?=?$this->wxpay_model->wxPayJsApi($orderData);
????????//將數(shù)據(jù)分配到模板去，在js里使用
????????$this->smartyData['wxJsApiData']?=?json_encode($wxJsApiData,?JSON_UNESCAPED_UNICODE);
????????$this->smartyData['order']?=?$orderData;
????????$this->displayView('wxpay/confirm.tpl');
????????
????}

　　這一步開始去取JSAPI支付接口所需要的數(shù)據(jù)了，這一步算是最主要的一步，這里還會調(diào)用統(tǒng)一下單接口獲取到prepay_id，我們跳到

　　$this->wxpay_model->wxPayJsApi($orderData) 看看：

/**
?????*?微信jsapi點擊支付
?????*?@param??[type]?$data?[description]
?????*?@return?[type]???????[description]
?????*/
????public?function?wxPayJsApi($data)?{
????????$jsApi?=?new?JsApi_handle();
????????//統(tǒng)一下單接口所需數(shù)據(jù)
????????$payData?=?$this->returnData($data);
????????//獲取code碼，用以獲取openid
????????$code?=?$_GET['code'];
????????$jsApi->setCode($code);
????????//通過code獲取openid
????????$openid?=?$jsApi->getOpenId();
????????
????????$unifiedOrderResult?=?null;
????????if?($openid?!=?null)?{
????????????//取得統(tǒng)一下單接口返回的數(shù)據(jù)
????????????$unifiedOrderResult?=?$this->getResult($payData,?'JSAPI',?$openid);
????????????//獲取訂單接口狀態(tài)
????????????$returnMessage?=?$this->returnMessage($unifiedOrder,?'prepay_id');
????????????if?($returnMessage['resultCode'])?{
????????????????$jsApi->setPrepayId($retuenMessage['resultField']);
????????????????//取得wxjsapi接口所需要的數(shù)據(jù)
????????????????$returnMessage['resultData']?=?$jsApi->getParams();
????????????}?

????????????return?$returnMessage;
????????}
????}

　　這里首先是取得下單接口所需要的數(shù)據(jù)；

　　接著獲取到code碼，通過code碼獲取到openid；

　　然后調(diào)用統(tǒng)一下單接口，取得下單接口的響應(yīng)數(shù)據(jù)，即prepay_id；

　　最后取得微信支付JSAPI所需要的數(shù)據(jù)。

　　這就是上面這個方法所要做的事情，取到數(shù)據(jù)后，會將數(shù)據(jù)分配到模板里，然后根據(jù)官方文檔所給的參考格式將其放在js里,如下面的代碼：

<!doctype html>??
<html>??
<head>??
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- Make sure that we can test against real IE8 -->
<meta http-equiv="X-UA-Compatible" content="IE=8" />
<title></title>
</head>
<body>

<a href="javascript:callpay();" id="btnOrder">點擊支付</a>
</body>??
<script type="text/javascript">
????//將數(shù)據(jù)付給js變量
????var?wxJsApiData?=?{$wxJsApiData};
????function?onBridgeReady()
????????{
????????????//格式參考官方文檔?https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=7_7&index=6
????????????WeixinJSBridge.invoke(
????????????????'getBrandWCPayRequest',
????????????????$.parseJSON(wxJsApiData.resultData),
????????????????function(res){
????????????????????if(res.err_msg?==?"get_brand_wcpay_request:ok"?){
????????????????????????window.location.href="/wxpay/paysuccess/"+{$order.sn};?
????????????????????}

????????????????}?
????????????);
????????}
????????function?callpay()
????????{?
????????????if(!wxJsApiData.resultCode){
????????????????alert(wxJsApiData.resultType+","+wxJsApiData.resultMsg+"!");
????????????????return?false;
????????????}
????????????if?(typeof?WeixinJSBridge?==?"undefined"){
????????????????if(?document.addEventListener?){
????????????????????document.addEventListener('WeixinJSBridgeReady',?onBridgeReady,?false);
????????????????}else?if?(document.attachEvent){
????????????????????document.attachEvent('WeixinJSBridgeReady',?onBridgeReady);
????????????????????document.attachEvent('onWeixinJSBridgeReady',?onBridgeReady);
????????????????}
????????????}else{
????????????????onBridgeReady();
????????????}
????????}
</script>
</html>

　　3、此時用戶只需要點擊支付，就可以開始進入支付界面了，接著就是輸入密碼，確認(rèn)，最后會提示支付成功，緊接著網(wǎng)站會提供一個支付成功跳轉(zhuǎn)頁面。類似微信文檔里所提供的圖片這樣，這里我就直接截取文檔里的案例圖了：

基于H5的微信支付開發(fā)詳解

　　4、這里還有一步，就是微信支付系統(tǒng)會異步通知網(wǎng)站后臺用戶的支付結(jié)果。在獲取統(tǒng)一下單數(shù)據(jù)時，我們指定了一個通知地址，在model里可以找到

基于H5的微信支付開發(fā)詳解

　　支付成功后，微信支付系統(tǒng)會將支付結(jié)果異步發(fā)送到此地址上/Wxpay/pay_callback/ ，我們來看一下這個方法

/**
?????*?支付回調(diào)接口
?????*?@return?[type]?[description]
?????*/
????public?function?pay_callback()?{
????????$postData?=?'';
????????if?(file_get_contents("php://input"))?{
????????????$postData?=?file_get_contents("php://input");
????????}?else?{
????????????return;
????????}
????????$payInfo?=?array();
????????$notify?=?$this->wxpay_model->wxPayNotify($postData);

????????if?($notify->checkSign?==?TRUE)?{
????????????if?($notify->data['return_code']?==?'FAIL')?{
????????????????$payInfo['status']?=?FALSE;
????????????????$payInfo['msg']?=?'通信出錯';
????????????}?elseif?($notify->data['result_code']?==?'FAIL')?{
????????????????$payInfo['status']?=?FALSE;
????????????????$payInfo['msg']?=?'業(yè)務(wù)出錯';
????????????}?else?{
????????????????$payInfo['status']?=?TRUE;
????????????????$payInfo['msg']?=?'支付成功';
????????????????$payInfo['sn']=substr($notify->data['out_trade_no'],8);
????????????????$payInfo['order_no']?=?$notify->data['out_trade_no'];
????????????????$payInfo['platform_no']=$notify->data['transaction_id'];
????????????????$payInfo['attach']=$notify->data['attach'];
????????????????$payInfo['fee']=$notify->data['cash_fee'];
????????????????$payInfo['currency']=$notify->data['fee_type'];
????????????????$payInfo['user_sign']=$notify->data['openid'];
????????????}
????????}
????????$returnXml?=?$notify->returnXml();

????????echo?$returnXml;

????????$this->load->library('RedisCache');
????????if($payInfo['status']){
???????????//這里要記錄到日志處理（略）
????????????$this->model->order->onPaySuccess($payInfo['sn'],?$payInfo['order_no'],?$payInfo['platform_no'],'',?$payInfo['user_sign'],?$payInfo);
????????????$this->redis->RedisCache->set('order:payNo:'.$payInfo['order_no'],'OK',5000);
????????}else{
???????????//這里要記錄到日志處理（略）
????????????$this->model->order->onPayFailure($payInfo['sn'],?$payInfo['order_no'],?$payInfo['platform_no'],'',?$payInfo['user_sign'],?$payInfo,?'訂單支付失敗?['.$payInfo['msg'].']');
????????}
????}

　　這方法就是對支付是否成功，對網(wǎng)站的支付相關(guān)邏輯進行后續(xù)處理，例如假如支付失敗，就需要記錄日志里說明此次交易失敗，或者是做某一些邏輯處理，而支付成功又該如何做處理，等等。

　　這里我們就分析下這個方法 $this->wxpay_model->wxPayNotify($postData); 對異步返回的數(shù)據(jù)進行安全性校驗，例如驗證簽名，看看model里的這個方法：

/**
?????*?微信回調(diào)接口返回??驗證簽名并回應(yīng)微信
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?wxPayNotify($xml)?{
????????$notify?=?new?Wxpay_server();
????????$notify->saveData($xml);
????????//驗證簽名，并回復(fù)微信
????????//對后臺通知交互時，如果微信收到商戶的應(yīng)答不是成功或者超時，微信認(rèn)為通知失敗
????????//微信會通過一定的策略（如30分鐘共8次），定期重新發(fā)起通知
????????if?($notify->checkSign()?==?false)?{
????????????$notify->setReturnParameter("return_code","FAIL");//返回狀態(tài)碼
????????????$notify->setReturnParameter("return_msg","簽名失敗");//返回信息
????????}?else?{
????????????$notify->checkSign=TRUE;
????????????$notify->setReturnParameter("return_code","SUCCESS");//設(shè)置返回碼
????????}

????????return?$notify;
????}

　　如果驗證通過，則就開始進行交易成功或者失敗時所要做的邏輯處理了，這邏輯處理的代碼我就不寫了，因為每一個網(wǎng)站的處理方式都不一樣，我這里是這樣處理的，我把思路寫下，方便不懂的朋友可以按著我的思路去完善后續(xù)的處理：首先是查看數(shù)據(jù)庫里的訂單日志表，看這筆交易之前是否已經(jīng)交易過了，交易過就不用再更新數(shù)據(jù)表了，如果沒交易過，就會將之前存在redis的訂單數(shù)據(jù)給取出來，再將這些數(shù)據(jù)插入到訂單日志表里，差不多就這樣處理。

　　好了，基于H5的微信支付接口開發(fā)詳解就講到這里，如果你認(rèn)真理清博文里所講解的思路，自己基本上也可以嘗試開發(fā)此接口了，同時只要會了這個，你也基本上可以開發(fā)二維碼支付，刷卡支付等等的支付接口。

　　這里我附上此次開發(fā)中的完整代碼供大家閱讀：

?load->model('wxpay_model');
????????//$this->load->model('wxpay');
????????
????}
?
????public?function?index()?{
????????//微信支付
????????$this->smarty['wxPayUrl']?=?$this->wxpay_model->retWxPayUrl();
????????$this->displayView('wxpay/index.tpl');
????}

????/**
?????*?手機端微信支付，此處是授權(quán)獲取到code時的回調(diào)地址
?????*?@param??[type]?$orderId?訂單編號id
?????*?@return?[type]??????????[description]
?????*/?
????public?function?confirm($orderId)?{
????????//先確認(rèn)用戶是否登錄
????????$this->ensureLogin();
????????//通過訂單編號獲取訂單數(shù)據(jù)
????????$order?=?$this->wxpay_model->get($orderId);
????????//驗證訂單是否是當(dāng)前用戶
????????$this->_verifyUser($order);

????????//取得支付所需要的訂單數(shù)據(jù)
????????$orderData?=?$this->returnOrderData[$orderId];
????????//取得jsApi所需要的數(shù)據(jù)
????????$wxJsApiData?=?$this->wxpay_model->wxPayJsApi($orderData);
????????//將數(shù)據(jù)分配到模板去，在js里使用
????????$this->smartyData['wxJsApiData']?=?json_encode($wxJsApiData,?JSON_UNESCAPED_UNICODE);
????????$this->smartyData['order']?=?$orderData;
????????$this->displayView('wxpay/confirm.tpl');
????????
????}
????/**
?????*?支付回調(diào)接口
?????*?@return?[type]?[description]
?????*/
????public?function?pay_callback()?{
????????$postData?=?'';
????????if?(file_get_contents("php://input"))?{
????????????$postData?=?file_get_contents("php://input");
????????}?else?{
????????????return;
????????}
????????$payInfo?=?array();
????????$notify?=?$this->wxpay_model->wxPayNotify($postData);

????????if?($notify->checkSign?==?TRUE)?{
????????????if?($notify->data['return_code']?==?'FAIL')?{
????????????????$payInfo['status']?=?FALSE;
????????????????$payInfo['msg']?=?'通信出錯';
????????????}?elseif?($notify->data['result_code']?==?'FAIL')?{
????????????????$payInfo['status']?=?FALSE;
????????????????$payInfo['msg']?=?'業(yè)務(wù)出錯';
????????????}?else?{
????????????????$payInfo['status']?=?TRUE;
????????????????$payInfo['msg']?=?'支付成功';
????????????????$payInfo['sn']=substr($notify->data['out_trade_no'],8);
????????????????$payInfo['order_no']?=?$notify->data['out_trade_no'];
????????????????$payInfo['platform_no']=$notify->data['transaction_id'];
????????????????$payInfo['attach']=$notify->data['attach'];
????????????????$payInfo['fee']=$notify->data['cash_fee'];
????????????????$payInfo['currency']=$notify->data['fee_type'];
????????????????$payInfo['user_sign']=$notify->data['openid'];
????????????}
????????}
????????$returnXml?=?$notify->returnXml();

????????echo?$returnXml;

????????$this->load->library('RedisCache');
????????if($payInfo['status']){
???????????//這里要記錄到日志處理（略）
????????????$this->model->order->onPaySuccess($payInfo['sn'],?$payInfo['order_no'],?$payInfo['platform_no'],'',?$payInfo['user_sign'],?$payInfo);
????????????$this->redis->RedisCache->set('order:payNo:'.$payInfo['order_no'],'OK',5000);
????????}else{
???????????//這里要記錄到日志處理（略）
????????????$this->model->order->onPayFailure($payInfo['sn'],?$payInfo['order_no'],?$payInfo['platform_no'],'',?$payInfo['user_sign'],?$payInfo,?'訂單支付失敗?['.$payInfo['msg'].']');
????????}
????}

????/**
?????*?返回支付所需要的數(shù)據(jù)
?????*?@param??[type]?$orderId?訂單號
?????*?@param??string?$data????訂單數(shù)據(jù)，當(dāng)$data數(shù)據(jù)存在時刷新$orderData緩存，因為訂單號不唯一
?????*?@return?[type]??????????[description]
?????*/
????public?function?returnOrderData($orderId,?$data?=?'')?{
????????//獲取訂單數(shù)據(jù)
????????$order?=?$this->wxpay_model->get($orderId);
????????if?(0?===?count($order))?return?false;
????????if?(empty($data))?{
????????????$this->load->library('RedisCache');
????????????//取得緩存在redis的訂單數(shù)據(jù)
????????????$orderData?=?$this->rediscache->getJson("order:orderData:".$orderId);
????????????if?(empty($orderData))?{
????????????????//如果redis里沒有，則直接讀數(shù)據(jù)庫取
????????????????$this->load->model('order_model');
????????????????$order?=?$this->order_model->get($orderId);
????????????????if?(0?===?count($order))?{
????????????????????return?false;
????????????????}
????????????????$data?=?$order;
????????????}?else?{
????????????????//如果redis里面有的話，直接返回數(shù)據(jù)
????????????????return?$orderData;
????????????}
????????}
?
????????//支付前緩存所需要的數(shù)據(jù)
????????$orderData['id']?=?$data['id'];
????????$orderData['fee']?=?$data['fee'];

????????//支付平臺需要的數(shù)據(jù)
????????$orderData['user_id']?=?$data['user_id'];
????????$orderData['sn']?=?$data['cn'];
????????//這是唯一編號
????????$orderData['order_no']?=?substr(md5($data['sn'].$data['fee']),?8,?8).$data['sn'];
????????$orderData['fee']?=?$data['fee'];
????????$orderData['time']?=?$data['time'];
????????$orderData['goods_name']?=?$data['goods_name'];
????????$orderData['attach']?=?$data['attach'];

????????//將數(shù)據(jù)緩存到redis里面
????????$this->rediscache->set("order:orderData:".$orderId,?$orderData,?3600*24);
????????//做個標(biāo)識緩存到redis，用以判斷該訂單是否已經(jīng)支付了
????????$this->rediscache->set("order:payNo:".$orderData['order_no'],?"NO",?3600*24);

????????return?$orderData;
????}

????private?function?_verifyUser($order)?{
????????if?(empty($order))?show_404();
????????if?(0?===?count($order))?show_404();
????????//判斷訂單表里的用戶id是否是當(dāng)前登錄者的id
????????if?($order['user_id']?==?$this->uid)?return;
????????show_error('只能查看自己的訂單');
????}

}

控制器：Wxpay.php

控制器：Wxpay.php

?createOauthUrlForCode();
????}
?
????/**
?????*?微信jsapi點擊支付
?????*?@param??[type]?$data?[description]
?????*?@return?[type]???????[description]
?????*/
????public?function?wxPayJsApi($data)?{
????????$jsApi?=?new?JsApi_handle();
????????//統(tǒng)一下單接口所需數(shù)據(jù)
????????$payData?=?$this->returnData($data);
????????//獲取code碼，用以獲取openid
????????$code?=?$_GET['code'];
????????$jsApi->setCode($code);
????????//通過code獲取openid
????????$openid?=?$jsApi->getOpenId();
????????
????????$unifiedOrderResult?=?null;
????????if?($openid?!=?null)?{
????????????//取得統(tǒng)一下單接口返回的數(shù)據(jù)
????????????$unifiedOrderResult?=?$this->getResult($payData,?'JSAPI',?$openid);
????????????//獲取訂單接口狀態(tài)
????????????$returnMessage?=?$this->returnMessage($unifiedOrder,?'prepay_id');
????????????if?($returnMessage['resultCode'])?{
????????????????$jsApi->setPrepayId($retuenMessage['resultField']);
????????????????//取得wxjsapi接口所需要的數(shù)據(jù)
????????????????$returnMessage['resultData']?=?$jsApi->getParams();
????????????}?

????????????return?$returnMessage;
????????}
????}

????/**
?????*?統(tǒng)一下單接口所需要的數(shù)據(jù)
?????*?@param??[type]?$data?[description]
?????*?@return?[type]???????[description]
?????*/
????public?function?returnData($data)?{
????????$payData['sn']?=?$data['sn'];
????????$payData['body']?=?$data['goods_name'];
????????$payData['out_trade_no']?=?$data['order_no'];
????????$payData['total_fee']?=?$data['fee'];
????????$payData['attach']?=?$data['attach'];

????????return?$payData;
????}

????/**
?????*?返回統(tǒng)一下單接口結(jié)果?（參考https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1）
?????*?@param??[type]?$payData????[description]
?????*?@param??[type]?$trade_type?[description]
?????*?@param??[type]?$openid?????[description]
?????*?@return?[type]?????????????[description]
?????*/
????public?function?getResult($payData,?$trade_type,?$openid?=?null)?{
????????$unifiedOrder?=?new?UnifiedOrder_handle();

????????if?($opneid?!=?null)?{
????????????$unifiedOrder->setParam('openid',?$openid);
????????}
????????$unifiedOrder->setParam('body',?$payData['body']);??//商品描述
????????$unifiedOrder->setParam('out_trade_no',?$payData['out_trade_no']);?//商戶訂單號
????????$unifiedOrder->setParam('total_fee',?$payData['total_fee']);????//總金額
????????$unifiedOrder->setParam('attach',?$payData['attach']);??//附加數(shù)據(jù)
????????$unifiedOrder->setParam('notify_url',?base_url('/Wxpay/pay_callback'));//通知地址
????????$unifiedOrder->setParam('trade_type',?$trade_type);?//交易類型

????????//非必填參數(shù)，商戶可根據(jù)實際情況選填
????????//$unifiedOrder->setParam("sub_mch_id","XXXX");//子商戶號
????????//$unifiedOrder->setParam("device_info","XXXX");//設(shè)備號
????????//$unifiedOrder->setParam("time_start","XXXX");//交易起始時間
????????//$unifiedOrder->setParam("time_expire","XXXX");//交易結(jié)束時間
????????//$unifiedOrder->setParam("goods_tag","XXXX");//商品標(biāo)記
????????//$unifiedOrder->setParam("product_id","XXXX");//商品ID
????????
????????return?$unifiedOrder->getResult();
????}

????/**
?????*?返回微信訂單狀態(tài)
?????*/
????public?function?returnMessage($unifiedOrderResult,$field){
????????$arrMessage=array("resultCode"=>0,"resultType"=>"獲取錯誤","resultMsg"=>"該字段為空");
????????if($unifiedOrderResult==null){
????????????$arrMessage["resultType"]="未獲取權(quán)限";
????????????$arrMessage["resultMsg"]="請重新打開頁面";
????????}elseif?($unifiedOrderResult["return_code"]?==?"FAIL")
????????{
????????????$arrMessage["resultType"]="網(wǎng)絡(luò)錯誤";
????????????$arrMessage["resultMsg"]=$unifiedOrderResult['return_msg'];
????????}
????????elseif($unifiedOrderResult["result_code"]?==?"FAIL")
????????{
????????????$arrMessage["resultType"]="訂單錯誤";
????????????$arrMessage["resultMsg"]=$unifiedOrderResult['err_code_des'];
????????}
????????elseif($unifiedOrderResult[$field]?!=?NULL)
????????{
????????????$arrMessage["resultCode"]=1;
????????????$arrMessage["resultType"]="生成訂單";
????????????$arrMessage["resultMsg"]="OK";
????????????$arrMessage["resultField"]?=?$unifiedOrderResult[$field];
????????}
????????return?$arrMessage;
????}

????/**
?????*?微信回調(diào)接口返回??驗證簽名并回應(yīng)微信
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?wxPayNotify($xml)?{
????????$notify?=?new?Wxpay_server();
????????$notify->saveData($xml);
????????//驗證簽名，并回復(fù)微信
????????//對后臺通知交互時，如果微信收到商戶的應(yīng)答不是成功或者超時，微信認(rèn)為通知失敗
????????//微信會通過一定的策略（如30分鐘共8次），定期重新發(fā)起通知
????????if?($notify->checkSign()?==?false)?{
????????????$notify->setReturnParameter("return_code","FAIL");//返回狀態(tài)碼
????????????$notify->setReturnParameter("return_msg","簽名失敗");//返回信息
????????}?else?{
????????????$notify->checkSign=TRUE;
????????????$notify->setReturnParameter("return_code","SUCCESS");//設(shè)置返回碼
????????}

????????return?$notify;
????}
}

/**
*?JSAPI支付——H5網(wǎng)頁端調(diào)起支付接口
*/
class?JsApi_handle?extends?JsApi_common?{
????public?$code;//code碼，用以獲取openid
????public?$openid;//用戶的openid
????public?$parameters;//jsapi參數(shù)，格式為json
????public?$prepay_id;//使用統(tǒng)一支付接口得到的預(yù)支付id
????public?$curl_timeout;//curl超時時間

????function?__construct()
????{
????????//設(shè)置curl超時時間
????????$this->curl_timeout?=?WxPayConf::CURL_TIMEOUT;
????}

????/**
?????*?生成獲取code的URL
?????*?@return?[type]?[description]
?????*/
????public?function?createOauthUrlForCode()?{
????????//重定向URL
????????$redirectUrl?=?"http://www.itcen.cn/wxpay/confirm/".$orderId."?showwxpaytitle=1";
????????$urlParams['appid']?=?WxPayConf::APPID;
????????$urlParams['redirect_uri']?=?$redirectUrl;
????????$urlParams['response_type']?=?'code';
????????$urlParams['scope']?=?'snsapi_base';
????????$urlParams['state']?=?"STATE"."#wechat_redirect";
????????//拼接字符串
????????$queryString?=?$this->ToUrlParams($urlParams,?false);
????????return?"https://open.weixin.qq.com/connect/oauth2/authorize?".$queryString;
????}

????/**
?????*?設(shè)置code
?????*?@param?[type]?$code?[description]
?????*/
????public?function?setCode($code)?{
????????$this->code?=?$code;
????}

????/**
?????*??作用：設(shè)置prepay_id
?????*/
????public?function?setPrepayId($prepayId)
????{
????????$this->prepay_id?=?$prepayId;
????}

????/**
?????*??作用：獲取jsapi的參數(shù)
?????*/
????public?function?getParams()
????{
????????$jsApiObj["appId"]?=?WxPayConf::APPID;
????????$timeStamp?=?time();
????????$jsApiObj["timeStamp"]?=?"$timeStamp";
????????$jsApiObj["nonceStr"]?=?$this->createNoncestr();
????????$jsApiObj["package"]?=?"prepay_id=$this->prepay_id";
????????$jsApiObj["signType"]?=?"MD5";
????????$jsApiObj["paySign"]?=?$this->getSign($jsApiObj);
????????$this->parameters?=?json_encode($jsApiObj);

????????return?$this->parameters;
????}

????/**
?????*?通過curl?向微信提交code?用以獲取openid
?????*?@return?[type]?[description]
?????*/
????public?function?getOpenId()?{
????????//創(chuàng)建openid?的鏈接
????????$url?=?$this->createOauthUrlForOpenid();
????????//初始化
????????$ch?=?curl_init();
????????curl_setopt($ch,?CURL_TIMEOUT,?$this->curl_timeout);
????????curl_setopt($ch,?CURL_URL,?$url);
????????curl_setopt($ch,?CURL_SSL_VERIFYPEER,?FALSE);
????????curl_setopt($ch,?CURL_SSL_VERIFYHOST,?FALSE);
????????curl_setopt($ch,?CURL_HEADER,?FALSE);
????????curl_setopt($ch,?CURL_RETURNTRANSFER,?TRUE);
????????//執(zhí)行curl
????????$res?=?curl_exec($ch);
????????curl_close($ch);
????????//取出openid
????????$data?=?json_decode($res);
????????if?(isset($data['openid']))?{
????????????$this->openid?=?$data['openid'];
????????}?else?{
????????????return?null;
????????}

????????return?$this->openid;

????}

????/**
?????*?生成可以獲取openid?的URL
?????*?@return?[type]?[description]
?????*/
????public?function?createOauthUrlForOpenid()?{
????????$urlParams['appid']?=?WxPayConf::APPID;
????????$urlParams['secret']?=?WxPayConf::APPSECRET;
????????$urlParams['code']?=?$this->code;
????????$urlParams['grant_type']?=?"authorization_code";
????????$queryString?=?$this->ToUrlParams($urlParams,?false);
????????return?"https://api.weixin.qq.com/sns/oauth2/access_token?".$queryString;
????}
}

/**
?*?統(tǒng)一下單接口類
?*/
class?UnifiedOrder_handle?extends?Wxpay_client_handle?{
????public?function?__construct()?{
????????//設(shè)置接口鏈接
????????$this->url?=?"https://api.mch.weixin.qq.com/pay/unifiedorder";
????????//設(shè)置curl超時時間
????????$this->curl_timeout?=?WxPayConf::CURL_TIMEOUT;
????}

}

/**
?*?響應(yīng)型接口基類
?*/
class?Wxpay_server_handle?extends?JsApi_common{
????public?$data;?//接收到的數(shù)據(jù)，類型為關(guān)聯(lián)數(shù)組
????public?$returnParams;???//返回參數(shù)，類型為關(guān)聯(lián)數(shù)組

????/**
?????*?將微信請求的xml轉(zhuǎn)換成關(guān)聯(lián)數(shù)組
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?saveData($xml)?{
????????$this->data?=?$this->xmlToArray($xml);?
????}


????/**
?????*?驗證簽名
?????*?@return?[type]?[description]
?????*/
????public?function?checkSign()?{
????????$tmpData?=?$this->data;
????????unset($temData['sign']);
????????$sign?=?$this->getSign($tmpData);
????????if?($this->data['sign']?==?$sign)?{
????????????return?true;
????????}
????????return?false;
????}


????/**
?????*?設(shè)置返回微信的xml數(shù)據(jù)
?????*/
????function?setReturnParameter($parameter,?$parameterValue)
????{
????????$this->returnParameters[$this->trimString($parameter)]?=?$this->trimString($parameterValue);
????}

????/**
?????*?將xml數(shù)據(jù)返回微信
?????*/
????function?returnXml()
????{
????????$returnXml?=?$this->createXml();
????????return?$returnXml;
????}

}

/**
?*?請求型接口的基類
?*/
class?Wxpay_client_handle?extends?JsApi_common{
????public?$params;?//請求參數(shù)，類型為關(guān)聯(lián)數(shù)組
????public?$response;?//微信返回的響應(yīng)
????public?$result;?//返回參數(shù)，類型類關(guān)聯(lián)數(shù)組
????public?$url;?//接口鏈接
????public?$curl_timeout;?//curl超時時間

????/**
?????*?設(shè)置請求參數(shù)
?????*?@param?[type]?$param??????[description]
?????*?@param?[type]?$paramValue?[description]
?????*/
????public?function?setParam($param,?$paramValue)?{
????????$this->params[$this->tirmString($param)]?=?$this->trimString($paramValue);
????}

????/**
?????*?獲取結(jié)果，默認(rèn)不使用證書
?????*?@return?[type]?[description]
?????*/
????public?function?getResult()?{
????????$this->postxml();?
????????$this->result?=?$this->xmlToArray($this->response);

????????return?$this->result;
????}

????/**
?????*?post請求xml
?????*?@return?[type]?[description]
?????*/
????public?function?postxml()?{
????????$xml?=?$this->createXml();
????????$this->response?=?$this->postXmlCurl($xml,?$this->curl,?$this->curl_timeout);

????????return?$this->response;
????}

????public?function?createXml()?{
????????$this->params['appid']?=?WxPayConf::APPID;?//公眾號ID
????????$this->params['mch_id']?=?WxPayConf::MCHID;?//商戶號
????????$this->params['nonce_str']?=?$this->createNoncestr();???//隨機字符串
????????$this->params['sign']?=?$this->getSign($this->params);??//簽名
????????
????????return?$this->arrayToXml($this->params);?
????}

????

}

/**
?*?所有接口的基類
?*/
class?JsApi_common?{
????function?__construct()?{

????}

????public?function?trimString($value)?{
????????$ret?=?null;
????????if?(null?!=?$value)?{
????????????$ret?=?trim($value);
????????????if?(strlen($ret)?==?0)?{
????????????????$ret?=?null;
????????????}
????????}?
????????return?$ret;
????}

????/**
?????*?產(chǎn)生隨機字符串，不長于32位
?????*?@param??integer?$length?[description]
?????*?@return?[type]??????????[description]
?????*/
????public?function?createNoncestr($length?=?32)?{
????????$chars?=?"abcdefghijklmnopqrstuvwxyz0123456789";
????????$str?=?'';
????????for?($i?=?0;?$i?< $length; $i++) {
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }

        return $str;
    }

    /**
     * 格式化參數(shù) 拼接字符串，簽名過程需要使用
     * @param [type] $urlParams     [description]
     * @param [type] $needUrlencode [description]
     */
    public function ToUrlParams($urlParams, $needUrlencode) {
        $buff = "";
        ksort($urlParams);

        foreach ($urlParams as $k =>?$v)?{
????????????if($needUrlencode)?$v?=?urlencode($v);
????????????$buff?.=?$k?.'='.?$v?.'&';
????????}

????????$reqString?=?'';
????????if?(strlen($buff)?>?0)?{
????????????$reqString?=?substr($buff,?0,?strlen($buff)?-?1);
????????}

????????return?$reqString;
????}

????/**
?????*?生成簽名
?????*?@param??[type]?$params?[description]
?????*?@return?[type]?????????[description]
?????*/
????public?function?getSign($obj)?{
????????foreach?($obj?as?$k?=>?$v)?{
????????????$params[$k]?=?$v;
????????}
????????//簽名步驟一：按字典序排序參數(shù)
????????ksort($params);
????????$str?=?$this->ToUrlParams($params,?false);??
????????//簽名步驟二：在$str后加入key
????????$str?=?$str."$key=".WxPayConf::KEY;
????????//簽名步驟三：md5加密
????????$str?=?md5($str);
????????//簽名步驟四：所有字符轉(zhuǎn)為大寫
????????$result?=?strtoupper($str);

????????return?$result;
????}

????/**
?????*?array轉(zhuǎn)xml
?????*?@param??[type]?$arr?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?arrayToXml($arr)?{
????????$xml?=?"";
????????foreach?($arr?as?$k?=>?$v)?{
????????????if?(is_numeric($val))?{
????????????????$xml?.=?"<".$key.">".$key."";
????????????}?else?{
????????????????$xml?.=?"<".$key.">";
????????????}
????????}
????????$xml?.=?"";
????????return?$xml;
????}

????/**
?????*?將xml轉(zhuǎn)為array
?????*?@param??[type]?$xml?[description]
?????*?@return?[type]??????[description]
?????*/
????public?function?xmlToArray($xml)?{
????????$arr?=?json_decode(json_encode(simplexml_load_string($xml,?'SinpleXMLElement',?LIBXML_NOCDATA)),?true);

????????return?$arr;
????}

????/**
?????*?以post方式提交xml到對應(yīng)的接口
?????*?@param??[type]??$xml????[description]
?????*?@param??[type]??$url????[description]
?????*?@param??integer?$second?[description]
?????*?@return?[type]??????????[description]
?????*/
????public?function?postXmlCurl($xml,?$url,?$second?=?30)?{
????????//初始化curl
????????$ch?=?curl_init();
????????//設(shè)置超時
????????curl_setopt($ch,?CURL_TIMEOUT,?$second);
????????curl_setopt($ch,?CURL_URL,?$url);
????????//這里設(shè)置代理，如果有的話
????????//curl_setopt($ch,CURLOPT_PROXY,?'8.8.8.8');
????????//curl_setopt($ch,CURLOPT_PROXYPORT,?8080);
????????curl_setopt($ch,?CURL_SSL_VERIFYHOST,?FALSE);
????????curl_setopt($ch,?CURL_SSL_VERIFYPEER,?FALSE);
????????//設(shè)置header
????????curl_setopt($ch,?CURL_HEADER,?FALSE);
????????//要求結(jié)果為字符串且輸出到屏幕上
????????curl_setopt($ch,?CURL_RETURNTRANSFER,?TRUE);
????????//以post方式提交
????????curl_setopt($ch,?CURL_POST,?TRUE);
????????curl_setopt($ch,?CURL_POSTFIELDS,?$xml);
????????//執(zhí)行curl
????????$res?=?curl_exec($ch);

????????if?($res)?{
????????????curl_close($ch);
????????????return?$res;
????????}?else?{
????????????$error?=?curl_errno($ch);
????????????echo?"curl出錯，錯誤碼:$error"."
";
????????????echo?"錯誤原因查詢
";
????????????curl_close($ch);
????????????return?false;
????????}
????}
}

/**
?*?配置類
?*/
class?WxPayConf?{
????//微信公眾號身份的唯一標(biāo)識。
????const?APPID?=?'wx654a22c6423213b7';
????//受理商ID，身份標(biāo)識
????const?MCHID?=?'10043241';
????const?MCHNAME?=?'KellyCen的博客';
????
????//商戶支付密鑰Key。
????const?KEY?=?'0000000000000000000000000000000';
????//JSAPI接口中獲取openid
????const?APPSECRET?=?'000000000000000000000000000';

????//證書路徑,注意應(yīng)該填寫絕對路徑
????const?SSLCERT_PATH?=?'/home/WxPayCacert/apiclient_cert.pem';
????const?SSLKEY_PATH?=?'/home/WxPayCacert/apiclient_key.pem';
????const?SSLCA_PATH?=?'/home/WxPayCacert/rootca.pem';

????//本例程通過curl使用HTTP?POST方法，此處可修改其超時時間，默認(rèn)為30秒
????const?CURL_TIMEOUT?=?30;
}

模型：Wxpay_model.php

?<!doctype html>??
<html>??
<head>??
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- Make sure that we can test against real IE8 -->
<meta http-equiv="X-UA-Compatible" content="IE=8" />
<title></title>
</head>
<body>

<a href="{$wxPayUrl}">微信支付</a>
</body>??
</html>

視圖：index.tpl

?
?
?

點擊支付
?

視圖：confirm.tpl

里面所用到的一些自定義函數(shù)可以在我上一篇博文里找找，那里已經(jīng)提供了代碼參考了。?

更多基于H5的微信支付開發(fā)詳解?相關(guān)文章請關(guān)注PHP中文網(wǎng)！

? ????? ??

? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.