/** * 下载对账单,WxPayDownloadBill中bill_date为必填参数 * appid、mchid、spbill_create_ip、nonce_str不需要填入 * @param WxPayDownloadBill $inputObj * @param int $timeOut * @throws WxPayException * @return 成功时返回,其他抛异常 */ public static function downloadBill($inputObj, $timeOut = 6) { $url = "https://api.mch.weixin.qq.com/pay/downloadbill"; //检测必填参数 if (!$inputObj->IsBill_dateSet()) { throw new WxPayException("对账单接口中,缺少必填参数bill_date!"); } $inputObj->SetAppid(WxPayConfig::APPID); //公众账号ID $inputObj->SetMch_id(WxPayConfig::MCHID); //商户号 $inputObj->SetNonce_str(self::getNonceStr()); //随机字符串 $inputObj->SetSign(); //签名 $xml = $inputObj->ToXml(); $response = self::postXmlCurl($xml, $url, false, $timeOut); if (substr($response, 0, 5) == "<xml>") { return ""; } return $response; }