案例：
微信用户访问页面直接发送红包给用户 或者通过微信用户opendi 直接发送红包
红包分2种 正常红包和裂变红包 金额不能小于1元 裂变红包 不能小于人均1元
代金卷要先到微信支付后台建立代金卷 充值后 取得代金卷批次号才能使用
证书 要去官方下载证书才可以 注意证书位置
$type=rand(1,3); // 1是普通红包 2是裂变红包 3代金卷
$hongbao =new hongbao(APPID,"商户号","密钥",$openid,$type);
if($type==1){
$data['send_name']='农品购';
$data['total_amount']=100; //付款金额单位为
$data['total_num']=1; //发红包人数
$data['wishing']="祝福语-的说明"; //祝福语
$data['client_ip']=$_SERVER['REMOTE_ADDR']; //调用接口的机器Ip地址
$data['act_name']='这是一个正常的红包'; //活动名称
$data['remark']="--XXXxxxxx备注"; //备注
}elseif($type==2){
$data['send_name']='农品购';
$data['total_amount']=300; //付款金额单位为
$data['total_num']=3; //发红包人数
$data['wishing']="祝福语-的说明"; //祝福语
$data['client_ip']=$_SERVER['REMOTE_ADDR']; //调用接口的机器Ip地址
$data['act_name']='这是一个分裂的红包 '; //活动名称
$data['remark']="---XXXxxxxx备注！"; //备注
}elseif($type==3){
$data['coupon_stock_id']='260611'; //代金卷批次
$data['openid_count']=1;
}
$hongbao->setdata($data);
$re=$hongbao->post();
$data=$hongbao->get_re_xml();
if($re['result_code']=='SUCCESS'){
echo '<h1>领取成功！</h1>';
}else{
echo '<h1>领取失败.'.$re['err_code_des']."</h1>";
}
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红包类
<?php
class hongbao
{
//公共变量
private $appid; //公众号id
private $sign=''; //签名
private $nonce_str; //随机字符串
private $mch_id; //商户号
private $mch_billno; //商户订单id
private $my; //支付秘钥
private $wx_id; //微信id
public $type=1; // 1是普通红包 2是裂变红包 3代金
private $data=array();// 参数数组
private $xml; // xml
private $redata; //返回数据
private $curl; //提交数据接口
private $cert_pem; // 证书1
private $key_pem; //证书2
function __construct($appid,$mch_id,$my,$wx_id,$type=1,$path='.') { //appid 商户号 支付密钥 微信id 证书位置
$this->appid=$appid;
$this->nonce_str=md5(rand(100000,99999));
$this->mch_id=$mch_id;
$this->my=$my;
$this->wx_id=$wx_id;
$this->mch_billno=$mch_id.date("Ymd").rand(1111111111,9999999999); //商户订单号
$this->type=$type;
if($path=='.'){
$this->cert_pem=getcwd().'/apiclient_cert.pem';
$this->key_pem=getcwd().'/apiclient_key.pem';
}
}
public function setdata($udata,$p=0) //设置数据
{
$this->diy($udata);
$this->sign();
$this->xml();
if($p)var_dump(htmlspecialchars($this->xml));
}
//返回的xml
public function get_re_xml()
{
return $this->redata;
}
//发送数据
public function post()
{
$this->set_url(); //设置url
$this->curl_post_ssl($this->curl,$this->xml);
return $this->xml2arr($this->redata);
}
//根据类型返回不同接口
private function set_url()
{
if($this->type==1){
$this->curl= 'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack';
}elseif($this->type==2){
$this->curl='https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack';
}elseif($this->type==3){
$this->curl='https://api.mch.weixin.qq.com/mmpaymkttransfers/send_coupon';
}else{
die('红包类型错误');
}
}
//根据类型返回不同内容
private function xml()
{
$this->xml='<xml>';
$this->xml.="<sign><![CDATA[".$this->sign."]]></sign>";
foreach ($this->data as $k => $v) {
$this->xml.="<$k><![CDATA[$v]]></$k>";
}
$this->xml.='</xml>';
}
//拼接签名
private function sign($data)
{
ksort($this->data); //排序
$strA='';
foreach ($this->data as $k => $v) {
$strA.= $k.'='.$v."&";
}
$stringSignTemp=$strA."key=".$this->my;
$this->sign=strtoupper(md5($stringSignTemp));
}
//提交
private function curl_post_ssl($url, $vars, $second=30,$aHeader=array())
{
$ch = curl_init();
//超时时间
curl_setopt($ch,CURLOPT_TIMEOUT,$second);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
//这里设置代理，如果有的话
//curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98');
//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);
//以下两种方式需选择一种
//第一种方法，cert 与 key 分别属于两个.pem文件
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLCERT,$this->cert_pem);
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLKEY,$this->key_pem);
//第二种方式，两个文件合成一个.pem文件
//curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem');
if( count($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);
$this->redata=$data;
}
else {
$error = curl_errno($ch);
echo "通信失败, errorCode:$error\n请联系管理员";
curl_close($ch);
$this->redata=false;
}
}
//组合字段
private function diy($udata){
if($this->type==1){
$data['mch_billno']=$this->mch_billno;
$data['mch_id']=$this->mch_id;
$data['wxappid']=$this->appid;
$data['send_name']=$udata['send_name']; //发送名称
$data['re_openid']=$this->wx_id; //收红包的openid
$data['total_amount']=$udata['total_amount']; //付款金额单位为
$data['total_num']=$udata['total_num']; //发红包人数
$data['wishing']=$udata['wishing']; //祝福语
$data['client_ip']=$udata['client_ip'];//调用接口的机器Ip地址
$data['act_name']=$udata['act_name']; //活动名称
$data['remark']=$udata['remark'];//备注
$data['nonce_str']=$this->nonce_str;
}elseif($this->type==2){
$data['mch_billno']=$this->mch_billno;
$data['mch_id']=$this->mch_id;
$data['wxappid']=$this->appid;
$data['send_name']=$udata['send_name']; //发送名称
$data['re_openid']=$this->wx_id; //收红包的openid
$data['total_amount']=$udata['total_amount'];
$data['total_num']=$udata['total_num'];
$data['wishing']=$udata['wishing']; //祝福语
$data['act_name']=$udata['act_name']; //活动名称
$data['remark']=$udata['remark'];//备注
$data['nonce_str']=$this->nonce_str;
$data['amt_type']="ALL_RAND";
}elseif($this->type==3){
$data['appid']=$this->appid;
$data['coupon_stock_id']=$udata['coupon_stock_id'];
$data['mch_id']=$this->mch_id;
$data['nonce_str']=$this->nonce_str;
$data['openid']=$this->wx_id;
$data['openid_count']=$udata['openid_count'];
$data['partner_trade_no']=$this->mch_billno;
}
$this->data=$data;
}
function xml2arr($str){
$data=array();
$xml=simplexml_load_string($str);
foreach($xml->children() as $child)
{
$data[$child->getName()]= (string)$child ;
}
return $data;
}
}