Shulou(Shulou.com)06/03 Report--

This article mainly introduces PHP Weixin Pay development after scanning payment callback example analysis, has a certain reference value, interested friends can refer to, I hope you read this article after a great harvest, the following let Xiaobian take you to understand.

I. Download Weixin Pay SDK

After downloading the SDK package and extracting it, under the extracted directory, we will see the following directory

II. After consulting the developer document of Weixin Pay, we know that the demo of WeChat code scanning payment is the native.php file under the example directory.

For convenience, what we're going to do is put the whole extracted file into the wxpay (name it like) folder at the root of our local environment

Third, take the author as an example, enter http://localhost/wxpay/example/native.php in the browser

After opening the above website, I found that there are two QR codes, such as the title, what we are studying today is mode 2 scanning code (official also recommends mode 2 scanning code payment)

IV. We log in WeChat with our mobile phone, scan the QR code of mode 2 in the above page, and pay

Here we find an interesting problem, when you pay successfully, there is no change in the PC page, so the main problem we consider is how to make a callback after payment.

Not much nonsense here, the author refers to many methods on the Internet, summarized as follows:

1. Delete some html of scan mode 1 in the native.php file, leaving only some related html code of scan mode 2.

2. Since the official document also states that the payment result of scanning mode 2 is asynchronous response and will not actively return the payment result, we use javascript to monitor the payment result from time to time, and then according to the result of the request, we will do the next page callback. The author's final code is as follows, interested friends can refer to the following:

native.php file

Sample of Weixin Pay Scan Payment Mode II

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