src/Gateways/Wechat/BankGateway.php
public function find($partner_trade_no = '')
    {
        $this->unsetTradeTypeAndNotifyUrl();
        $this->config['partner_trade_no'] = $partner_trade_no;
        unset($this->config['appid'], $this->config['sign_type']);
        return $this->getResult($this->gateway_query, true);
    }
public function find($partner_trade_no = '')
    {
        $this->unsetTradeTypeAndNotifyUrl();
        $this->config['partner_trade_no'] = $partner_trade_no;
        unset($this->config['appid'], $this->config['sign_type']);
        return $this->getResult($this->gateway_query, true);
    }
查询订单状态
@param string $partner_trade_no 商户订单号
@return array
@throws GatewayException