开发框架为we7
所需参数:appid,appSecret,MchId,API密钥
<?php/**
* 微信红包的类
**/CLASSWXHongBao {PRivate$mch_id= "111111";//商户ID写死private$wxappid= "22222222";//微信公众号，写死private$client_ip= "119.29.80.114";//调用红包接口的主机的IP,服务端IP,写死，即脚本文件所在的IPprivate$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$re_openid= "";//接收方的openIDprivate$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*/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";$this->apiclient_key =getcwd()."/apiclient_key.pem";
}publicfunctionerr(){return$this->error;
}publicfunctionerror(){return$this->err();
}/**
* WXHongBao::newhb()
* 构造新红包
* @param mixed $toOpenId
* @param mixed $amount 金额分
* @return void*/publicfunctionnewhb($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 $success*/publicfunctionsend($url= "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack",$total_num= 1){if(!$this->wxhb_inited){$this->error .= "(红包未准备好)";returnfalse;//未初始化完成}$this->total_num =$total_num;$this->gen_Sign();//生成签名
//构造提交的数据$xml=$this->genXMLParam();//debugfile_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($rsxml->return_code == 'SUCCESS'){returntrue;
}else{$this->error =$rsxml->return_msg;returnfalse;
}
}else{$this->error = curl_errno($ch);
curl_close($ch);returnfalse;
}
}/**
* WXHongBao::sendGroup()
* 发送裂变红包,参数为裂变数量
* @param integer $num 3-20
* @return*/publicfunctionsendGroup($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,$num);
}publicfunctiongetApiSingle(){return$this->api_hb_single;
}publicfunctiongetApiGroup(){return$this->api_hb_group;
}publicfunctionsetNickName($nick){$this->nick_name =$nick;
}publicfunctionsetSendName($name){$this->send_name =$name;
}publicfunctionsetWishing($wishing){$this->wishing =$wishing;
}/**
* WXHongBao::setActName()
* 活动名称
* @param mixed $act
* @return void*/publicfunctionsetActName($act){$this->act_name =$act;
}publicfunctionsetRemark($remark){$this->remark =$remark;
}publicfunctionsetOpenId($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 $price 单位 分
* @return void*/publicfunctionsetAmount($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publicfunctionsetHBminmax($min,$max){$this->min_value =$min;$this->max_value =$max;
}publicfunctionsetShare($img="",$url="",$content=""){//https://mmbiz.qlogo.cn/mmbiz/MS1jaDO92Ep4qNo9eV0rnItptyBrzUhJqT8oxSsCofdxibnNWMJiabaqgLPkDaEJmia6fqTXAXulKBa9NLfxYMwYA/0?wx_fmt=png
//http://mp.weixin.qq.com/s?__biz=MzA5Njg4NTk3MA==&mid=206257621&idx=1&sn=56241da30e384e40771065051e4aa6a8#rd$this->share_content =$content;$this->share_imgurl =$img;$this->share_url =$url;
}privatefunctiongen_nonce_str(){$this->nonce_str =strtoupper(md5(mt_rand().time()));//确保不重复而已}privatefunctiongen_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;$sign_raw= "";foreach($paramas$k=>$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 $xml*/publicfunctiongenXMLParam(){$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*/privatefunctiongen_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;
}
}?>
然后实例化class.
$toOpenId= 'asdasdasd';//接收红包的用户的微信OpenId$hb=newWXHongBao();
$hb->newhb($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";
}