1、产生这个问题的原因是：调用微信接口传入的参数spbill_create_ip与实际支付时获取的不一致
2、首先，注释掉这一行[Wxpay/lib/WxPay.Api.php]//$inputObj->SetSpbill_create_ip($_SERVER['REMOTE_ADDR']);//终端ip
3、然后在业务代码中，新增函数get_client_ip();/*** 获取客户端诔罨租磊IP地址* @return string*/function get_艘早祓胂client_ip() { if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) { $ip = getenv('HTTP_CLIENT_IP'); } elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) { $ip = getenv('HTTP_X_FORWARDED_FOR'); } elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) { $ip = getenv('REMOTE_ADDR'); } elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) { $ip = $_SERVER['REMOTE_ADDR']; } else { $ip = '0.0.0.0'; } return preg_match('/[\d\.]{7,15}/', $ip, $matches) ? $matches[0] : '';
4、最后获取终端IP，再调用微信SDK的统一下单//...$spbill_create_ip = get_client_ip();$input = new WxPayUnifiedOrder();//...$input->SetSpbill_create_ip($spbill_create_ip);// 调用统一下单接口$result = WxPayApi::unifiedOrder($input);