Use EasyWeChat and PHP to create the push function of WeChat mini program

Use EasyWeChat and PHP to create the push function of WeChat mini program

In the development of WeChat mini program, implementing the push function is very important to improve user stickiness and retention rate. This article will introduce how to use EasyWeChat and PHP to build the push function of the WeChat applet, and provide relevant code examples.

1. Introduction to EasyWeChat

EasyWeChat is a PHP SDK based on WeChat public accounts (including subscription accounts, service accounts and enterprise accounts). It provides a wealth of interfaces and methods to facilitate developers Interact with WeChat official accounts. In addition to supporting public accounts, EasyWeChat also supports mini programs, payment, web page authorization and other functions.

2. Preparations for building the push function

1. Create a WeChat applet and obtain the AppID and AppSecret

Create a new one on the WeChat public platform applet, and write down the generated AppID and AppSecret, which are the credentials for subsequent interactions with the applet.

2. Install EasyWeChat

Use Composer to manage dependencies. You can create a composer.json file in the project root directory, and then execute the composer install command to install EasyWeChat.

3. Use EasyWeChat to push mini program messages

1. Initialize EasyWeChat

Use the obtained AppID and AppSecret to initialize EasyWeChat:

// 引入Composer自动加载文件
require 'vendor/autoload.php';
use EasyWeChatFactory;
$config = [
    'app_id' => 'your-app-id',
    'secret' => 'your-app-secret',
    'response_type' => 'array',
    //...
];
$app = Factory::miniProgram($config);

2. Get applet access_token

$response = $app->access_token->getToken();
$access_token = $response['access_token'];

3. Build message template

$template = [
    'touser' => 'openid',
    'template_id' => 'your-template-id',
    'form_id' => 'your-form-id',
    'page' => 'your-page',
    'data' => [
        'keyword1' => [
            'value' => 'value1',
            'color' => '#173177',
        ],
        'keyword2' => [
            'value' => 'value2',
            'color' => '#173177',
        ],
        //...
    ],
];

4. Send template message

$result = $app->template_message->send($template);

'openid' in the above code is the unique identifier of the user who receives the push message, 'template_id' is the ID of the mini program message template, 'form_id' is the collected user form ID, and 'page' is the page to jump to after clicking the push message The page path to be transferred, 'data' is the keyword to be replaced and the corresponding content in the message template.

4. Mini-program code example

In the corresponding page of the mini-program, obtain the user's form ID and send it to the backend:

wx.getFormId({
  success: function(res) {
    var formId = res.formId;
    // 将formId发送给后端保存
    wx.request({
      url: 'your-php-file-url',
      method: 'POST',
      data: {
        form_id: formId
      },
      success: function(res) {
        console.log(res);
      }
    });
  }
});

5. Improvement and expansion Function

The above example only introduces how to use EasyWeChat and PHP to implement the push function of the WeChat applet, and can be further improved and expanded as needed. For example, you can customize push content, add some interactive functions, optimize push effects, etc.

Summary

This article introduces the steps to use EasyWeChat and PHP to build the WeChat applet push function, and provides relevant code examples. In this way, developers can easily interact with mini programs, implement functions such as message push and user reminders, and improve user experience and stickiness. I hope this article can be helpful to students who develop WeChat applets.

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