Solving common problems for novice developers of WeChat payment interface

Common problems for newbies in WeChat payment interface development are actually some common minor problems after downloading them. Let’s take a look at a related article compiled by the editor.

Today, I downloaded the official documentation and directly used the official demo (php version) to make a simple payment page. Encountered the following problem.

1. Configuration file modification

Find the configuration file WxPay.Config.php and only need to configure the following four items

2. The redirect_uri parameter is wrong

Log in to the public management backend - click Developer Center - find the web account, click Modify, write your own domain name, save and take effect.

3. The page URL is not registered

Log in to the public WeChat backend - WeChat payment - development configuration, and set the payment authorization directory path to the last slash

The test authorization directory I set up is: http://www.xxx.com.cn/m/test/wxpay/example/

My JsApi payment page is: http://www.xxx.com.cn/m/test/wxpay/example/money.php

4. Sample page

jsapi.php jsApi payment

micropay.php Pay by credit card

native.php scan code to pay

orderquery.php order query

refund.php order refund

refundquery.php refund query

download.php download order<script>ec(2);</script>