《统一收单交易退款查询)》https://docs.open.alipay.com/api_1/alipay.trade.fastpay.refund.query/

```

/**

* 退款查询 - 测试

* url: http://tp5_alipay2017/index/alipay/refundQueryTest

*/

public function refundQueryTest()

{

alipayRefundQuery('2017091810199555','2017091821001004920267861832','22384701');

}

```

## 申请退款


返回的数据

```

C:\project\tp3_alipay2017\Application\Home\Common\function.php:123:

object(stdClass)[15]

public 'alipay_trade_fastpay_refund_query_response' =>

object(stdClass)[16]

public 'code' => string '10000' (length=5)

public 'msg' => string 'Success' (length=7)

public 'sign' => string 'KEY4rd8CjKH0Lh6bWWkk+mH648B5YYZm81ovbZIDLrXvMhV5qYgz7eveXjUoJb4qgXjxyMJlt+VCdqFjzmOAAcOUQHhPXFHj35mE1f+kIBe+FZAJpLKos+8Qw7rrqGV+OyiapurHajKdLtfzbvuTNb/ATKnBr6Zx10pIm5V6ADSBb9HcctBlxcT+9zTneraKYL/VNkpmUVAWQGyH0mrHQn3yQCKD/MAAMkr/ozq1eVNqZ/JSb60Os82GNU3ZVDV3VLrFTS8u/ZnPJS98ztZfYyRe9HPqoEcxUFihJRhOf0hs/xJgDXiAPGR9ObxjCIPLY1quLX2ZtPRAHQ0pSwT9oA==' (length=344)

```

## 退款处理


```

C:\project\tp3_alipay2017\Application\Home\Common\function.php:94:

object(stdClass)[16]

public 'code' => string '40004' (length=5)

public 'msg' => string 'Business Failed' (length=15)

public 'sub_code' => string 'ACQ.REFUND_AMT_NOT_EQUAL_TOTAL' (length=30)

public 'sub_msg' => string '撤销或退款金额与订单金额不一致' (length=45)

public 'out_trade_no' => string '201791713650556' (length=15)

public 'refund_fee' => string '0.00' (length=4)

public 'send_back_fee' => string '0.00' (length=4)

```

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