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PHP版微信紅包API接口程序

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May 22, 2016 pm 06:38 PM

catch include

對于微信紅包我相信今年過年時(shí)各位朋友都有知道吧，這個(gè)微信紅包相當(dāng)?shù)幕鸨?，下面我們來給各位介紹一個(gè)PHP版微信紅包API接口程序了，我們可以基于這個(gè)接口也實(shí)現(xiàn)開發(fā)第三方紅包功能。

根據(jù)微信高級紅包接口，開發(fā)PHP版本的API接口，現(xiàn)在進(jìn)行主要代碼分析。

紅包接口調(diào)用請求代碼，所有請求參數(shù)為必填參數(shù)與文檔對應(yīng)：

<?php
class Wxapi {
    private $app_id = &#39;wxXXXXXXXXXXXX&#39;; //公眾賬號appid，首先申請與之配套的公眾賬號
    private $app_secret = &#39;XXXXXXXXXXXXXXXXXXXXXXXX&#39;;//公眾號secret，用戶獲取用戶授權(quán)token
    private $app_mchid = &#39;XXXXXXXX&#39;;//商戶號id
    function __construct(){
    //do sth here....
    }
    /**
     * 微信支付
     * @param string $openid 用戶openid
     */
    public function pay($re_openid)
    {
        include_once(&#39;WxHongBaoHelper.php&#39;);
        $commonUtil = new CommonUtil();
        $wxHongBaoHelper = new WxHongBaoHelper();
        $wxHongBaoHelper->setParameter("nonce_str", $this->great_rand());//隨機(jī)字符串，丌長于 32 位
        $wxHongBaoHelper->setParameter("mch_billno", $this->app_mchid.date(&#39;YmdHis&#39;).rand(1000, 9999));//訂單號
        $wxHongBaoHelper->setParameter("mch_id", $this->app_mchid);//商戶號
        $wxHongBaoHelper->setParameter("wxappid", $this->app_id);
        $wxHongBaoHelper->setParameter("nick_name", &#39;紅包&#39;);//提供方名稱
        $wxHongBaoHelper->setParameter("send_name", &#39;紅包&#39;);//紅包發(fā)送者名稱
        $wxHongBaoHelper->setParameter("re_openid", $re_openid);//相對于醫(yī)脈互通的openid
        $wxHongBaoHelper->setParameter("total_amount", 100);//付款金額，單位分
        $wxHongBaoHelper->setParameter("min_value", 100);//最小紅包金額，單位分
        $wxHongBaoHelper->setParameter("max_value", 100);//最大紅包金額，單位分
        $wxHongBaoHelper->setParameter("total_num", 1);//紅包?Х拋莧聳?br />         $wxHongBaoHelper->setParameter("wishing", &#39;感謝您參與紅包派發(fā)活動(dòng)，祝您新年快樂！&#39;);//紅包祝福詫
        $wxHongBaoHelper->setParameter("client_ip", &#39;127.0.0.1&#39;);//調(diào)用接口的機(jī)器 Ip 地址
        $wxHongBaoHelper->setParameter("act_name", &#39;紅包活動(dòng)&#39;);//活勱名稱
        $wxHongBaoHelper->setParameter("remark", &#39;快來搶！&#39;);//備注信息
        $postXml = $wxHongBaoHelper->create_hongbao_xml();
        $url = &#39;https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack&#39;;
        $responseXml = $wxHongBaoHelper->curl_post_ssl($url, $postXml);
        //用作結(jié)果調(diào)試輸出
        //echo htmlentities($responseXml,ENT_COMPAT,&#39;UTF-8&#39;);
    $responseObj = simplexml_load_string($responseXml, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);
    return $responseObj->return_code;
    }
獲取隨機(jī)字符串方法：
/**
 * 生成隨機(jī)數(shù)
 */     
public function great_rand(){
    $str = &#39;1234567890abcdefghijklmnopqrstuvwxyz&#39;;
    for($i=0;$i<30;$i++){
        $j=rand(0,35);
        $t1 .= $str[$j];
    }
    return $t1;    
}

簽名算法：

/**

例如：

appid： wxd111665abv58f4f

mch_id： 10000100

device_info： 1000

Body： test

nonce_str： ibuaiVcKdpRxkhJA

第一步：對參數(shù)按照 key=value 的格式，并按照參數(shù)名 ASCII 字典序排序如下：

stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_id=10000100&nonce_str=ibuaiVcKdpRxkhJA";

第二步：拼接支付密鑰：

stringSignTemp="stringA&key=192006250b4c09247ec02edce69f6a2d"
sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A9CF3B7"

protected function get_sign(){
    define(&#39;PARTNERKEY&#39;,"QSRXXXXXXXXXXXXXXXXXXXXX");
    try {
        if (null == PARTNERKEY || "" == PARTNERKEY ) {
           throw new SDKRuntimeException("密鑰不能為空！" . "<br>");
        }
        if($this->check_sign_parameters() == false) {   //檢查生成簽名參數(shù)
           throw new SDKRuntimeException("生成簽名參數(shù)缺失！" . "<br>");
        }
        $commonUtil = new CommonUtil();
        ksort($this->parameters);
        $unSignParaString = $commonUtil->formatQueryParaMap($this->parameters, false);
        $md5SignUtil = new MD5SignUtil();
        return $md5SignUtil->sign($unSignParaString,$commonUtil->trimString(PARTNERKEY));
    }catch (SDKRuntimeException $e)
    {
        die($e->errorMessage());
    }
}
CURL請求以及發(fā)送證書：
function curl_post_ssl($url, $vars, $second=30,$aHeader=array())
{
    $ch = curl_init();
    //超時(shí)時(shí)間
    curl_setopt($ch,CURLOPT_TIMEOUT,$second);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
    //這里設(shè)置代理，如果有的話
    curl_setopt($ch,CURLOPT_URL,$url);
    curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
    curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);     
    //cert 與 key 分別屬于兩個(gè).pem文件
    //請確保您的libcurl版本是否支持雙向認(rèn)證，版本高于7.20.1
    curl_setopt($ch,CURLOPT_SSLCERT,dirname(__FILE__).DIRECTORY_SEPARATOR.&#39;zhengshu&#39;.DIRECTORY_SEPARATOR.&#39;apiclient_cert.pem&#39;);
    curl_setopt($ch,CURLOPT_SSLKEY,dirname(__FILE__).DIRECTORY_SEPARATOR.&#39;zhengshu&#39;.DIRECTORY_SEPARATOR.&#39;apiclient_key.pem&#39;);
    curl_setopt($ch,CURLOPT_CAINFO,dirname(__FILE__).DIRECTORY_SEPARATOR.&#39;zhengshu&#39;.DIRECTORY_SEPARATOR.&#39;rootca.pem&#39;);
    if( count($aHeader) >= 1 ){
        curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
    }
    curl_setopt($ch,CURLOPT_POST, 1);
    curl_setopt($ch,CURLOPT_POSTFIELDS,$vars);
    $data = curl_exec($ch);
    if($data){
        curl_close($ch);
        return $data;
    }
    else { 
        $error = curl_errno($ch);
        //echo "call faild, errorCode:$errorn"; 
        curl_close($ch);
        return false;
    }
}

入口文件：

@require "pay.php";

//獲取用戶信息
$get = $_GET[&#39;param&#39;];
$code = $_GET[&#39;code&#39;];
//判斷code是否存在
if($get==&#39;access_token&#39; && !empty($code)){
    $param[&#39;param&#39;] = &#39;access_token&#39;;
    $param[&#39;code&#39;] = $code;
    $packet = new Packet();
    //獲取用戶openid信息
    $userinfo = $packet->_route(&#39;userinfo&#39;,$param);
    if(empty($userinfo[&#39;openid&#39;])){
        exit("NOAUTH");
    }
    //調(diào)取支付方法
    $packet->_route(&#39;wxpacket&#39;,array(&#39;openid&#39;=>$userinfo[&#39;openid&#39;]));
}else{
    $packet->_route(&#39;userinfo&#39;);
}

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