微信企业付款到个人钱包引发的坑之反思~！

curl_setopt($curl,CURLOPT_SSLCERT,getcwd()."/cert/apiclient_cert.pem");
curl_setopt($curl,CURLOPT_SSLKEY,getcwd()."/cert/apiclient_key.pem");
curl_setopt($curl,CURLOPT_CAINFO,getcwd()."/cert/rootca.pem");

$dataArr=array();
$dataArr['amount']="金额";
$dataArr['check_name']="FORCE_CHECK";
$dataArr['desc']="xxxx";
$dataArr['mch_appid']="微信公众平台的appid";
$dataArr['mchid']="商户号";
$dataArr['nonce_str']= "随机数";
$dataArr['openid']=“用户的openid”;
$dataArr['partner_trade_no']=“交易号”;
$dataArr['re_user_name']=“开启验证用户的真实姓名”;
$dataArr['spbill_create_ip']=“ip地址”;
$sign_obj = WechatSign::getInstance();
$sign = $sign_obj->getSign($dataArr);

/**
 *  作用：格式化参数，签名过程需要使用
*/
function formatBizQueryParaMap($paraMap)
    {
        $buff = "";
        foreach ($paraMap as $k => $v)
        {
            if($k != "sign" && $v != "" && !is_array($v)){
                $buff .= $k . "=" . $v . "&";
            }
        }
        $buff = trim($buff, "&");
        return $buff;
    }
/**
 *  作用：生成签名
*/
function getSign($Obj)
    {
        //签名步骤一：按字典序排序参数
        ksort($Obj);
        //dump($Obj);
        $String = $this->formatBizQueryParaMap($Obj);
        //echo '【string1】'.$String.'</br>';
        //签名步骤二：在string后加入KEY
        $String = $String."&key=商户密匙";
        //echo "【string2】".$String."</br>";
        //签名步骤三：MD5加密
        $String = md5($String);
        //echo "【string3】 ".$String."</br>";
        //签名步骤四：所有字符转为大写
        $result_ = strtoupper($String);
        //echo "【result】 ".$result_."</br>";
        return $result_;
    }

//数组转XML 
function arrayToXml($arr)     
{        
 $xml = "<xml>";        
 foreach ($arr as $key=>$val){            
 if (is_numeric($val)){               
 $xml.="<".$key.">".$val."</".$key.">";             
 }else{
 $xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
 }
 }
 $xml.="</xml>";        
 return $xml;     
}