Home Backend Development PHP Tutorial PHP WeChat public account payment tutorial (including pictures and text)

PHP WeChat public account payment tutorial (including pictures and text)

Jun 13, 2020 pm 05:38 PM
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PHP WeChat public account payment tutorial (including pictures and text)

PHP WeChat public account payment tutorial (detailed graphic and text explanation)

This article is the latest WeChat payment interface V3 version of the PHP practical tutorial. The main framework used in this tutorial is the thinkPHP5 framework. If you are not familiar with development under the thinkPHP5 framework, you can check out the relevant tutorials. Of course, there are also thinkPHP5 tutorials on my blog that you can check out. My main goal in this article is to type less words so that everyone can understand how to use WeChat official account to pay. In the series of tutorials, two very popular usage scenarios are designed. One scenario is the article appreciation function implemented using thinkPHP5, and the other scenario is the member recharge function implemented using yii2. These two functions are used very frequently and are also very representative scenarios. There is no need to say more about the appreciation function. If this function were not popular, Apple would not charge a high 30% fee for every APP with the appreciation function. Of course, this is just a digression.

PHP WeChat public account payment tutorial (including pictures and text)

Configuration before development

WeChat public account background web page authorized domain name and js interface security domain name

These two domain names are generally required for WeChat public account web development, so what are their main functions? The js interface security domain name is to verify that it is your own system that calls jssdk and not someone else calling your interface. The domain name authorized by the web page is to verify that the request is indeed issued by the system you developed when the web page authorizes to obtain user information. After all, obtaining user information is not a simple matter. What if someone forges it to obtain the user information of your platform? .

配置的地方在左侧的 [开发>接口权限>网页授权 网页授权获取用户基本信息] 点击右侧的修改

When configuring the domain name, if the root domain name of your page is a first-level domain name, configure the first-level domain name. Note that it cannot include http:// or https://. If it is a second-level domain name, configure the second-level domain name. .

For example, the domain name used by my system is http://edu.sikukeji.com, then configure edu.sikukeji.com

PHP WeChat public account payment tutorial (including pictures and text)

##WeChat payment background configuration api key and official account payment authorization directory


First, you must log in to the WeChat payment merchant backend system. The address is http://pay.weixin.qq.com. If you haven’t activated WeChat payment yet, just follow the prompts to activate WeChat payment. Generally, you need to authenticate the WeChat official account and then apply for activation in the WeChat official account.

配置api密钥的地方在 账户中心>API安全>设置密钥

Because when calling the api, you need to verify the authenticity of the caller. To put it bluntly, it is to verify whether you are calling it yourself and the encryption of the call. This key needs to be 32 bits, so you can use md5 to encrypt a string that you commonly use, so that if you can't remember it next time, you can at least remember your string and use md5 to encrypt it.

PHP WeChat public account payment tutorial (including pictures and text)

You also need to set up the JSAPI payment authorization directory for public account payment

This directory confuses many people, but in fact there are Sometimes the literal meaning still needs to be understood selectively. Let’s first look at where to set it up.

产品中心>开发配置 点击后可以看到JSAPI支付授权目录的配置

Here I want to explain how to fill in this domain name:

First of all, if we want to pay, we must request the API for WeChat in the system we developed ourselves. Pay it forward. The request is usually made in a certain method. Of course, this premise is that you use the oop programming of the MVC framework. If functional programming is different, we only talk about oop programming under the MVC framework because PHP is rarely used for process-oriented programming.

If the domain name I request payment is http://edu.sikukeji.com/index/index/index.html, this is the domain name in tp5. The explanation is the index in the index controller of the index module. Send payment request in method. Then the detailed page address for requesting payment is index.html. If we put aside the structure of mvc, we can understand that index.html is in the directory http://edu.sikukeji.com/index/index/, so we configure this domain name. This is easy to understand. In fact, we can understand this URL as the upper level of the specific method.

PHP WeChat public account payment tutorial (including pictures and text)

Thank you all for reading, I hope you will benefit a lot.

Original link: https://blog.csdn.net/marswill/article/details/77928530

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