How to implement WeChat public account development in PHP

With the development of mobile Internet, WeChat has become a very popular social media platform. More and more companies and individuals are beginning to use WeChat as a channel for promotion and user interaction. In order to build your own public account on the WeChat platform, it is essential to develop an attractive application.

For PHP developers, how to implement WeChat public account development in PHP is very important. This article will introduce you how to implement WeChat public account development in PHP.

1. Apply for and configure a WeChat public account

First, we need to apply for our own WeChat public account. Register an account on the official WeChat official website (https://mp.weixin.qq.com/), fill in the relevant information and verify it, and wait for the official WeChat review.

Next, we need to configure it on the WeChat public platform. We need to set up the developer's basic information, server configuration, menu management, etc. Among them, server configuration is a very critical step, because we need to connect the official account to our own server to ensure that our business logic can run normally.

2. Use PHP SDK to interact with WeChat public platform

In PHP, we need to use the SDK provided by WeChat public platform to interact with WeChat public platform. The WeChat public platform provides a development platform (https://developers.weixin.qq.com/doc/offiaccount/Getting_Started/Overview.html), where we can obtain various documents and SDKs to facilitate the development of WeChat public accounts. .

1. Accept messages from the WeChat server

The WeChat public platform transmits messages sent by users to the developer's own server through POST. In PHP, we need to use the following code to process it:

$xml = file_get_contents("php://input");
$data = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);

Among them, $xml is the received XML data, $data is the array that the XML is converted into, so that we can easily process user messages for processing.

2. Reply to user messages

When we receive a message from a user, we need to reply to the user. In PHP, we can use the following code to reply to user messages:

$msg = "Hello World!";
$textTpl = "<xml>

<ToUserName><![CDATA[%s]]></ToUserName>

<FromUserName><![CDATA[%s]]></FromUserName>

<CreateTime>%s</CreateTime>

<MsgType><![CDATA[text]]></MsgType>

<Content><![CDATA[%s]]></Content>

<FuncFlag>0</FuncFlag>

</xml>";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msg);
echo $resultStr;

3. Get user information

In the development of WeChat public accounts, it is very important to obtain user information. A meaningful operation. In PHP, we can use the following code to obtain user information:

$access_token = "your_access_token";
$openid = "your_open_id";
$url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$access_token."&openid=".$openid."&lang=zh_CN";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
$json = json_decode($output);

In this way, we can obtain user information, including user nickname, avatar, etc. This information is very helpful and helps us better serve our users.

3. Conclusion

This article introduces how to implement WeChat public account development in PHP, including applying for and configuring WeChat public accounts, using PHP SDK to interact with WeChat public platform, etc. I hope this article can be helpful to everyone, and I also hope that everyone can achieve more results in the development of WeChat public accounts.

The above is the detailed content of How to implement WeChat public account development in PHP. For more information, please follow other related articles on the PHP Chinese website!