How to implement forced forwarding function on WeChat in PHP

As the number of WeChat users continues to increase, WeChat has become one of the indispensable communication tools in our daily lives. However, for some businesses or individual users, WeChat’s forwarding function has brought many problems. In some cases, we need to force users to forward certain content to others. In this case, we need to use a PHP program to implement the WeChat forced forwarding function.

Before we start, let’s first understand some basic concepts of WeChat development. WeChat development requires the use of the WeChat public platform, which is a development platform officially provided by WeChat. On this platform, we need to complete the following steps:

1. Create WeChat public account
2. Bind domain name
3. Configure server
4. Start development

Among them, step 3 of configuring the server is the focus of this article.

Before developing WeChat, we need to set the server address and token in the WeChat public platform. You can use PHP to develop a server program to receive messages pushed by WeChat. In PHP, you can use the curl library to handle HTTP requests and responses.

The following is a simple PHP program that can be used to process messages pushed to the server by WeChat:

<?php
$code = $_GET["code"];

$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=".$code."&grant_type=authorization_code";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

$data = json_decode(curl_exec($ch), true);

curl_close($ch);

if(!isset($data["openid"])) {
    echo "授权失效，请重新授权！";
    exit;
}

$openid = $data["openid"];

//TODO: 处理消息

?>

In this PHP program, we use the curl library to send a request to the WeChat public platform to obtain The user's openid. After obtaining the openid, we can process the message as needed. You can use the API provided by WeChat public platform to complete the following operations:

1. Get user information
2. Send message
3. Generate QR code
4. Get Graphic and text information of the subscription account
5. Group messages

When implementing the forced forwarding function of WeChat, we need to use the WeChat push method to send a message that needs to be forwarded to the user. For messages that need to be forced to be forwarded, you can use graphic messages and add a forward button to the graphic messages. When the user clicks the forward button, we need to obtain the user's information and send the forward message to the specified user.

In addition to using PHP to implement forced forwarding on WeChat, other languages ​​can also be used to implement it. For example, the same functionality can be achieved using Java or Python languages. No matter which language is used, you need to configure the server address and token in the WeChat public platform and complete related development work.

In short, PHP can be used to implement the forced forwarding function of WeChat. Through the API interface provided by the WeChat public platform, we can easily process user messages and implement various functions. In the application, if you need to force users to forward, you can refer to the above method to achieve it.

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