``` ~~~ <?php header('content-type:text/html;charset=utf-8'); class WeixinTx { protected $appid; protected $mch_id; protected $appkey; protected $openid; protected $amount; protected $desc; protected $re_user_name; function __construct($appid, $mch_id, $openid, $amount, $desc, $appkey, $re_user_name) { $this->appid = $appid; $this->openid = $openid; $this->mch_id = $mch_id; $this->key = $appkey; $this->desc = $desc; $this->amount = $amount; $this->re_user_name = $re_user_name; } public function Wxtx() { $return = $this->Wxtxpay(); return $return; } //统一下单接口 private function Wxtxpay() { $data['mch_appid'] = $this->appid;//商户的应用appid $data['mchid'] = $this->mch_id;//商户ID $data['nonce_str'] = $this->createNoncestr();//这个据说是唯一的字符串下面有方法 $data['partner_trade_no'] = time() . rand(10000, 99999);//.time();//这个是订单号。 $data['openid'] = $this->openid;//这个是授权用户的openid。。这个必须得是用户授权才能用 $data['check_name'] = 'NO_CHECK';//这个是设置是否检测用户真实姓名的 $data['re_user_name'] = $this->re_user_name;//用户的真实名字 $data['amount'] = $this->amount;//提现金额 $data['desc'] = $this->desc;//订单描述 $data['spbill_create_ip'] = $this->get_server_ip();//服务器的ip $secrect_key = $this->key;///这个就是个API密码。32位的。。随便MD5一下就可以了 $data = array_filter($data); ksort($data); $str = ''; foreach ($data as $k => $v) { $str .= $k . '=' . $v . '&'; } $str .= 'key=' . $secrect_key; $data['sign'] = md5($str); $xml = $this->arraytoxml($data); $url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers'; $res = $this->curl($xml, $url); $return = $this->xmltoarray($res); return $return; } //作用：产生随机字符串，不长于32位 private function createNoncestr($length = 32) { $chars = "abcdefghijklmnopqrstuvwxyz0123456789"; $str = ""; for ($i = 0; $i < $length; $i++) { $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } return $str; } private function arraytoxml($data) { $str = '<xml>'; foreach ($data as $k => $v) { $str .= '<' . $k . '>' . $v . '</' . $k . '>'; } $str .= '</xml>'; return $str; } private function xmltoarray($xml) { //禁止引用外部xml实体 libxml_disable_entity_loader(true); $xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA); $val = json_decode(json_encode($xmlstring), true); return $val; } private function curl($param = "", $url) { $postUrl = $url; $curlPost = $param; $ch = curl_init(); //初始化curl curl_setopt($ch, CURLOPT_URL, $postUrl); //抓取指定网页 curl_setopt($ch, CURLOPT_HEADER, 0); //设置header curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //要求结果为字符串且输出到屏幕上 curl_setopt($ch, CURLOPT_POST, 1); //post提交方式 curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost); // 增加 HTTP Header（头）里的字段 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // 终止从服务端进行验证 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_SSLCERT, getcwd() . '/cert/hyb_yl/apiclient_cert.pem'); //这个是证书的位置 curl_setopt($ch, CURLOPT_SSLKEY, getcwd() . '/cert/hyb_yl/apiclient_key.pem'); //这个也是证书的位置 $data = curl_exec($ch); //运行curl curl_close($ch); return $data; } /** * 获取服务器端IP地址 * @return string */ private function get_server_ip() { if (isset($_SERVER)) { if ($_SERVER['SERVER_ADDR']) { $server_ip = $_SERVER['SERVER_ADDR']; } else { $server_ip = $_SERVER['LOCAL_ADDR']; } } else { $server_ip = getenv('SERVER_ADDR'); } return $server_ip; } } ~~~ ```