'placeOrder', 'timestamp' => date('Y-m-d H:i:s'), 'memberId' => (int)self::$memberid,//商户号 'channelCode' => $pay_bankcode,//通道类型 'callerOrderId' => (string)$order_no,//商户订单号 'amount' => (int)bcmul($money, 100),//金额,单位为分 'merchantCallbackUrl' => (string)getenv('API_HOST') . '/api/pay/payment_callback_three.html',//异步通知地址,支付成功后将支付成功消息以POST请求发送给这个网址 'returnUrl' => (string)$url ]; $arr['sign'] = self::payMd5sign($arr); $data = Http::asJson()->post(self::$url, $arr)->array(); return ['data' => $data, 'arr' => $arr]; } static public function payMd5sign(array $param) { ksort($param); //ASCII码排序 $md5str = ''; foreach ($param as $key => $val) { $md5str = $md5str. $key . $val; } $md5str = self::$apikey.$md5str.self::$apikey; //获取sign $sign = md5($md5str); //转换成字符串并且拼接上密钥 return $sign; } }