Using PHP to implement WeChat message group management

As one of the most popular social media today, WeChat has become an indispensable part of modern society. For companies or individuals, WeChat official accounts have become an important platform for delivering information to users and promoting products and services. However, when the number of users increases, mass sending of messages becomes very tricky because group management is required. In this article, we will introduce how to use PHP to implement WeChat message group management.

What is WeChat mass messaging?

WeChat mass messaging is the process of sending messages to multiple users at the same time. This process is generally managed through a mobile application or the computer web version of the WeChat public platform. Messages can be sent to individual users or designated groups of users, increasing efficiency and accuracy. WeChat public account managers can arrange time and message planning according to their own needs to achieve the desired results.

Why is group management needed?

When the number of users is small, we can send messages by manually selecting each user. But when we need to send messages to a large number of users, it becomes very troublesome. At this time, group management becomes very necessary. The group management function of the WeChat public account backend allows us to classify users based on their different attributes, interests, purchasing behaviors and other conditions. For example: we can create groups of a certain age group, groups of a certain region, etc., so as to make our messages more targeted and improve user experience and effectiveness.

How to use PHP to implement WeChat message group management?

The WeChat public platform provides an API interface, and developers can use PHP and other languages ​​to implement WeChat message group management functions. The specific steps are as follows:

Step 1: Obtain access_token
When using the WeChat official account API interface, you need to provide an access_token to bind the developer account and the official account.

Step 2: Obtain user grouping
You can use the "Get User Grouping" API provided by WeChat Open Platform to obtain user grouping information.

Step 3: Create a group
You can use the "Create Group" API provided by the WeChat open platform to create a group, and you need to pass the group name as a parameter.

Step 4: Query Group
You can use the "Query Group" API provided by the WeChat open platform to query the existing group information of the current user.

Step 5: Send a message
Through the "Group Message" API provided by the WeChat open platform, developers can send messages to designated groups or all users who follow the official account. Developers need to provide parameters such as message content and message type.

You can use the following PHP code to achieve this function:

<?php
//接收access_token
$access_token = file_get_contents(‘https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APP_SECRET');
$access_token_array = json_decode($access_token,true);

//获取用户分组
$user_group_url = "https://api.weixin.qq.com/cgi-bin/groups/get?access_token=".$access_token_array['access_token'];
$user_str = file_get_contents($user_group_url);

//创建群组
$data = '{"group": {"name": "my_group"}}';
$creat_url = 'https://api.weixin.qq.com/cgi-bin/groups/create?access_token='.$access_token_array['access_token'];
$result_str = http_post_data($creat_url, $data);

//查询群组
$group_url = "https://api.weixin.qq.com/cgi-bin/groups/getid?access_token=".$access_token_array['access_token'];
$group_str = file_get_contents($group_url);

//发送消息
$post_data = '{
    "filter":{
        "is_to_all":false,
        "group_id":"GROUP_ID"
    },
    "text":{
        "content":"MESSAGE_CONTENT"
    },
    "msgtype":"text"
}';
$message_url = "https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=".$access_token_array['access_token'];
$result = http_post_data($message_url, $post_data);

//发送Post请求
function http_post_data($url, $data_string) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Content-Length: '.strlen($data_string)));
    ob_start();
    curl_exec($ch);
    $return_content = ob_get_contents();
    ob_end_clean();
    $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    return array($return_code, $return_content);
}
?>

Summary

In modern society, WeChat has become a platform that cannot be ignored. Using PHP to implement WeChat message group management is an important means to improve user experience and improve message sending efficiency. Through the above steps, we can achieve group management and targeted message sending, improving the efficiency of social media operations for enterprises or individuals.

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