PHP development of WeChat applet: EasyWeChat implements user comment and rating functions

PHP development of WeChat mini programs: EasyWeChat implements user comment and rating functions

In WeChat mini programs, user comment and rating functions are widely used in various application software, providing developers with an understanding User opinions are an important way to improve application quality. This article will introduce how to use PHP to develop WeChat applet and implement user comment and rating functions through EasyWeChat.

First, we need to set up a PHP development environment. You can set up a PHP development environment locally or on the server to ensure that PHP code can be run. At the same time, Composer needs to be installed to manage project dependencies.

Next, we need to introduce the EasyWeChat library. EasyWeChat is an open source WeChat development library that provides a convenient and easy-to-use interface to help us quickly develop WeChat applets. EasyWeChat can be installed through Composer:

composer require overtrue/wechat

After the installation is completed, you can start using EasyWeChat.

First, we need to create an application in the WeChat applet background and obtain the AppID and AppSecret. This information will be used in subsequent development.

Next, we need to use the tool class provided by EasyWeChat to initialize a WeChat applet object, and set the AppID and AppSecret:

use EasyWeChatFactory;

$config = [
    'app_id' => 'your-app-id',
    'secret' => 'your-app-secret',
    // ...
];

$app = Factory::miniProgram($config);

After the initialization is completed, we can use the $app object Let’s call the various interfaces provided by WeChat applet.

First, we need to implement the user comment function. You can add a comment box and submit button to the front-end page of the mini program to allow users to enter comment content and submit it.

In the background, we can use the interface provided by EasyWeChat to obtain user comments. The sample code is as follows:

$response = $app->content_security->checkText($content);

if ($response['errcode'] == 0) {
    // 评论内容合法，保存到数据库
    // 写入数据库的代码...
} else {
    // 评论内容违规，给用户提示并禁止保存
    echo '评论内容不符合规定，请重新输入';
}

In the above code, we use EasyWeChat's content_security->checkText method to check whether the comments entered by the user comply with the regulations. This method returns a response containing the check results. If the comment content is legal, we can save it to the database; if it is not legal, we need to give the user a prompt.

Next, we need to implement the user rating function. In the front-end page of the mini program, you can use the star component provided by the WeChat mini program to implement the rating function. When the user clicks on the star, we can get the score selected by the user and then save it to the database.

The sample code is as follows:

$score = $_POST['score'];
$openId = $_POST['openId'];

// 将用户评分保存到数据库
// 写入数据库的代码...

In the above sample code, we submit the score selected by the user and the user's OpenID to the background, and then save it to the database.

To summarize, this article introduces how to use PHP to develop WeChat applet and implement user comment and rating functions through EasyWeChat. Through these features, we are able to better understand the needs and opinions of our users and improve our applications based on user feedback. I hope this article can provide some help to everyone when developing WeChat mini programs.

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