php微信公众帐号发送红包
开发框架为we7
所需参数:appid,appsecret,mchid,api密钥
php/** * 微信红包的类 * */class wxhongbao { 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 */ 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){ $this->error = 金额太小; return; }elseif($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 integer $num 3-20 * @return */ public function sendgroup($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 = $openid; } /** * wxhongbao::setamount() * 设置红包金额 * 文档有两处冲突描述 * 一处指金额 >=1 (分钱) * 另一处指金额 >=100 */ public function setamount($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 = $max; } public function setshare($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; } private function gen_nonce_str(){ $this->nonce_str = strtoupper(md5(mt_rand().time())); //确保不重复而已 } private function gen_sign(){ unset($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(){ $xml = .$this->sign. .$this->mch_billno. .$this->mch_id. .$this->wxappid. .$this->nick_name.]]>.$this->send_name.]]>.$this->re_openid. .$this->total_amount. .$this->min_value. .$this->max_value. .$this->total_num. .$this->wishing.]]>.$this->client_ip.]]>.$this->act_name.]]>.$this->remark.]]>.$this->nonce_str. ; if($this->share_content) $xml .= $this->share_content.]]> ; if($this->share_imgurl) $xml .= $this->share_imgurl.]]>; if($this->share_url) $xml .= $this->share_url.]]>; if($this->amt_type) $xml .= $this->amt_type.]]>; $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)){ $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 = new wxhongbao();
$hb->newhb($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; }