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php 微信发红包类及示例应用

微信公众号开发 苏 demo 2690℃

微信红包类

<?php

/**
 * 微信红包的类
 *
 */
class WechatRed
{

    private $mch_id       = "111111";//商户ID写死
    private $wxappid      = "22222222";//微信公众号,写死
    private $client_ip    = "119.29.80.114"; //调用红包接口的主机的IP,服务端IP,写死,即脚本文件所在的IP
    private $apikey       = "33333333";//pay的秘钥值
    private $total_num    = 1;//发放人数。固定值1,不可修改
    private $nick_name    = "微信产品中心公众号"; //红包商户名称
    private $send_name    = "微信产品中心公众号";//红包派发者名称
    private $wishing      = "祝福语"; //
    private $act_name     = "红包活动"; //活动名称
    private $remark       = "活动备注";
    private $nonce_str    = "";
    private $mch_billno   = "";
    private $re_openid    = "";//接收方的openID
    private $total_amount = 1;//红包金额,单位 分
    private $min_value    = 1;//最小金额
    private $max_value    = 1; //根据接口要求,上述3值必须一致
    private $sign         = ""; //签名在send时生成
    private $amt_type; //分裂红包参数,在sendgroup中进行定义,是常量 ALL_RAND

    //证书,在构造函数中定义,注意!
    private $apiclient_cert; //= getcwd()."/apiclient_cert.pem";
    private $apiclient_key;// = getcwd()."/apiclient_key.pem";

    //分享参数
    private $isShare       = false; //有用?似乎是无用参数,全部都不是必选和互相依赖的参数
    private $share_content = "";
    private $share_url     = "";
    private $share_imgurl  = "";

    private $wxhb_inited;

    private $api_hb_group  = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack";//裂变红包
    private $api_hb_single = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";

    private $error = "ok"; //init


    /**
     * WXHongBao::__construct()
     * 步骤
     * new(openid,amount)
     * setnickname
     * setsend_name
     * setwishing
     * setact_name
     * setremark
     * send()
     * @return void
     */
    public function __construct()
    {
        //好像没有什么需要构造函数做的
        $this->wxhb_inited    = false;
        $this->apiclient_cert = getcwd() . "/apiclient_cert.pem";
        $this->apiclient_key  = getcwd() . "/apiclient_key.pem";
    }

    public function err()
    {
        return $this->error;
    }

    public function error()
    {
        return $this->err();
    }

    /**
     * WXHongBao::newhb()
     * 构造新红包
     * @param mixed $toOpenId
     * @param mixed $amount 金额分
     * @return void
     */
    public function newhb($toOpenId, $amount)
    {

        if (!is_numeric($amount)) {
            $this->error = "金额参数错误";
            return;
        } elseif ($amount < 100) {
            $this->error = "金额太小";
            return;
        } elseif ($amount > 20000) {
            $this->error = "金额太大";
            return;
        }

        $this->gen_nonce_str();//构造随机字串
        $this->gen_mch_billno();//构造订单号
        $this->setOpenId($toOpenId);
        $this->setAmount($amount);
        $this->wxhb_inited = true; //标记微信红包已经初始化完毕可以发送

        //每次new 都要将分享的内容给清空掉,否则会出现残余被引用
        $this->share_content = "";
        $this->share_imgurl  = "";
        $this->share_url     = "";
    }

    /**
     * WXHongBao::send()
     * 发出红包
     * 构造签名
     * 注意第二参数,单发时不要改动!
     * @return boolean $success
     */
    public function send($url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack", $total_num = 1)
    {

        if (!$this->wxhb_inited) {
            $this->error .= "(红包未准备好)";
            return false; //未初始化完成
        }

        $this->total_num = $total_num;

        $this->gen_Sign(); //生成签名

        //构造提交的数据
        $xml = $this->genXMLParam();


        //debug
        file_put_contents("hbxml.txt", $xml);

        //提交xml,curl
        //$url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

        curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'PEM');
        curl_setopt($ch, CURLOPT_SSLCERT, $this->apiclient_cert);
        curl_setopt($ch, CURLOPT_SSLKEYTYPE, 'PEM');
        curl_setopt($ch, CURLOPT_SSLKEY, $this->apiclient_key);

        /*
        if( count($aHeader) >= 1 ){
          curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
        }
        */
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
        $data = curl_exec($ch);
        if ($data) {
            curl_close($ch);
            $rsxml = simplexml_load_string($data);
            if ($rsxml->return_code == 'SUCCESS') {
                return true;
            } else {
                $this->error = $rsxml->return_msg;
                return false;
            }

        } else {
            $this->error = curl_errno($ch);

            curl_close($ch);
            return false;
        }

    }

    /**
     * WXHongBao::sendGroup()
     * 发送裂变红包,参数为裂变数量
     * @param int $num
     * @return bool
     */
    public function sendGroup($num = 3)
    {
        $this->amt_type = "ALL_RAND";//$amt; 固定值。发送裂变红包组文档指定参数,随机
        return $this->send($this->api_hb_group, $num);
    }

    public function getApiSingle()
    {
        return $this->api_hb_single;
    }

    public function getApiGroup()
    {
        return $this->api_hb_group;
    }

    public function setNickName($nick)
    {
        $this->nick_name = $nick;
    }

    public function setSendName($name)
    {
        $this->send_name = $name;
    }

    public function setWishing($wishing)
    {
        $this->wishing = $wishing;
    }

    /**
     * WXHongBao::setActName()
     * 活动名称
     * @param mixed $act
     * @return void
     */
    public function setActName($act)
    {
        $this->act_name = $act;
    }

    public function setRemark($remark)
    {
        $this->remark = $remark;
    }

    public function setOpenId($openid)
    {
        $this->re_openid = $openid;
    }

    /**
     * WXHongBao::setAmount()
     * 设置红包金额
     * 文档有两处冲突描述
     * 一处指金额 >=1 (分钱)
     * 另一处指金额 >=100 < 20000 [1-200元]
     * 有待测试验证!
     * @param mixed $price 单位 分
     * @return void
     */
    public function setAmount($price)
    {
        $this->total_amount = $price;
        $this->min_value    = $price;
        $this->max_value    = $price;
    }

    //以下方法,为设置分裂红包时使用
    public function setHBminmax($min, $max)
    {
        $this->min_value = $min;
        $this->max_value = $max;
    }

    /**
     * 设置分享
     * @param string $img
     * @param string $url
     * @param string $content
     */
    public function setShare($img = "", $url = "", $content = "")
    {
        $this->share_content = $content;
        $this->share_imgurl  = $img;
        $this->share_url     = $url;
    }

    /**
     * 生成nonce_str
     */
    private function gen_nonce_str()
    {
        $this->nonce_str = strtoupper(md5(mt_rand() . time())); //确保不重复而已
    }

    /**
     * 生成签名
     */
    private function gen_Sign()
    {
        unset($param);
        //其实应该用key重排一次 right?
        $param["act_name"] = $this->act_name;//

        if ($this->total_num == 1) { //这些是裂变红包用不上的参数,会导致签名错误
            $param["client_ip"] = $this->client_ip;
            $param["max_value"] = $this->max_value;
            $param["min_value"] = $this->min_value;
            $param["nick_name"] = $this->nick_name;
        }

        $param["mch_billno"]   = $this->mch_billno;  //
        $param["mch_id"]       = $this->mch_id;//
        $param["nonce_str"]    = $this->nonce_str;  //
        $param["re_openid"]    = $this->re_openid;//
        $param["remark"]       = $this->remark;    //
        $param["send_name"]    = $this->send_name;//
        $param["total_amount"] = $this->total_amount;//
        $param["total_num"]    = $this->total_num;    //
        $param["wishing"]      = $this->wishing;//
        $param["wxappid"]      = $this->wxappid;//

        if ($this->share_content) $param["share_content"] = $this->share_content;
        if ($this->share_imgurl) $param["share_imgurl"] = $this->share_imgurl;
        if ($this->share_url) $param["share_url"] = $this->share_url;

        if ($this->amt_type) $param["amt_type"] = $this->amt_type; //

        ksort($param); //按照键名排序...艹,上面排了我好久

        //$sign_raw = http_build_query($param)."&key=".$this->apikey;
        $sign_raw = "";
        foreach ($param as $k => $v) {
            $sign_raw .= $k . "=" . $v . "&";
        }
        $sign_raw .= "key=" . $this->apikey;

        //file_put_contents("sign.raw",$sign_raw);//debug
        $this->sign = strtoupper(md5($sign_raw));
    }

    /**
     * WXHongBao::genXMLParam()
     * 生成post的参数xml数据包
     * 注意生成之前各项值要生成,尤其是Sign
     * @return $xml
     */
    public function genXMLParam()
    {

        $xml = "<xml>
      <sign>" . $this->sign . "</sign> 
      <mch_billno>" . $this->mch_billno . "</mch_billno> 
      <mch_id>" . $this->mch_id . "</mch_id> 
      <wxappid>" . $this->wxappid . "</wxappid> 
      <nick_name><![CDATA[" . $this->nick_name . "]]></nick_name> 
      <send_name><![CDATA[" . $this->send_name . "]]></send_name> 
      <re_openid>" . $this->re_openid . "</re_openid> 
      <total_amount>" . $this->total_amount . "</total_amount> 
      <min_value>" . $this->min_value . "</min_value> 
      <max_value>" . $this->max_value . "</max_value> 
      <total_num>" . $this->total_num . "</total_num> 
      <wishing><![CDATA[" . $this->wishing . "]]></wishing> 
      <client_ip><![CDATA[" . $this->client_ip . "]]></client_ip> 
      <act_name><![CDATA[" . $this->act_name . "]]></act_name> 
      <remark><![CDATA[" . $this->remark . "]]></remark>       
      <nonce_str>" . $this->nonce_str . "</nonce_str>
      ";


        if ($this->share_content) $xml .= "<share_content><![CDATA[" . $this->share_content . "]]></share_content>
    ";
        if ($this->share_imgurl) $xml .= "<share_imgurl><![CDATA[" . $this->share_imgurl . "]]></share_imgurl>
    ";
        if ($this->share_url) $xml .= "<share_url><![CDATA[" . $this->share_url . "]]></share_url>
    ";
        if ($this->amt_type) $xml .= "<amt_type><![CDATA[" . $this->amt_type . "]]></amt_type>
    ";

        $xml .= "</xml>";

        return $xml;
    }

    /**
     * WXHongBao::gen_mch_billno()
     * 商户订单号(每个订单号必须唯一)
     * 组成: mch_id+yyyymmdd+10位一天内不能重复的数字。
     * 接口根据商户订单号支持重入, 如出现超时可再调用。
     * @return void
     */
    private function gen_mch_billno()
    {
        //生成一个长度10,的阿拉伯数字随机字符串
        $rnd_num = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
        $rndstr  = "";
        while (strlen($rndstr) < 10) {
            $rndstr .= $rnd_num[array_rand($rnd_num)];
        }

        $this->mch_billno = $this->mch_id . date("Ymd") . $rndstr;
    }
}

示例应用

$toOpenId = 'asdasdasd'; //接收红包的用户的微信OpenId
$hb = new WechatRed();

$hb->newhb($toOpenId,1000); //新建一个10元的红包,第二参数单位是 分,注意取值范围 1-200元
//以下若干项可选操作,不指定则使用class脚本顶部的预设值
$hb->setNickName("土豪有限公司");
$hb->setSendName("土豪");
$hb->setWishing("恭喜发财");
$hb->setActName("发钱活动");
$hb->setRemark("任性一把");

//发送红包

if(!$hb->send()){ //发送错误

echo $hb->err();

}else{

echo "红包发送成功";

}

 

 

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