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";
    }
    
    publicfunction err(){
        return$this->error;
    } 
    publicfunction error(){
        return$this->err();
    }
    /**
     * WXHongBao::newhb()
     * 构造新红包 
     * @param mixed $toOpenId
     * @param mixed $amount 金额分
     * @return void
     */publicfunction newhb($toOpenId,$amount){
         
        if(!is_numeric($amount)){
            $this->error = "金额参数错误";
            return;
        }elseif($amount){