php - WeChat Pay selected the wrong amount and canceled the payment. Why is it still the wrong amount selected before when I reselect the amount to pay?

Question

I selected the wrong amount for WeChat Pay and canceled the payment. Why did I still select the wrong amount for payment when I reselected it? The order number is regenerated. Including the prepay_id generated by repayment is also different. But the amount is still the same as before. The parameters are different when the amount is different twice. But the money paid...

phpcn_u1582 · Answer

Then I guess the amount you sent is wrong. This is related to the program.
Refer to jsapi official account payment: php official account payment

我想大声告诉你 · Answer

It is estimated that the same merchant order number does not support modifying the amount. Please generate a new order number and try it

PHP中文网 · Answer

In fact, the amount you transfer to WeChat will be displayed when paying. It seems that the amount you sent to the WeChat interface is incorrect.

淡淡烟草味 · Answer

When calling WxPayUnifiedOrder, is there any change to parameter SetTotal_fee

巴扎黑 · Answer

If you initiate WeChat payment
The order number passed by the merchant is bound to the amount. If the amount changes, your order number will have to be regenerated and other information will also change accordingly
There is also the payment amount The format is specific
You only have the front-end code here and can’t see your specific problem