How to use PHP to implement the game function of WeChat applet?

How to use PHP to implement the game function of WeChat applet?

With the rise of WeChat mini programs, more and more developers are beginning to pay attention to how to implement game functions in mini programs. As a popular back-end language, PHP can be well paired with small programs to implement game functions. The following will introduce how to use PHP to implement the game functions of WeChat mini programs and provide specific code examples.

1. Create database

First, we need to create a database to store game-related data. MySQL or other database management systems can be used. The following is a simple database structure example:

CREATE TABLE `game`(
   `id` INT AUTO_INCREMENT PRIMARY KEY,
   `name` VARCHAR(50) NOT NULL,
   `score` INT NOT NULL,
   `time` DATETIME NOT NULL
);

2. Connect to the database

Next, we need to connect to the database in PHP in order to operate on the game data. The following is a simple sample code to connect to the database:

<?php
$host = 'localhost'; // 数据库主机地址
$db = 'game'; // 数据库名
$user = 'root'; // 数据库用户名
$pass = ''; // 数据库密码

// 连接数据库
$conn = new mysqli($host, $user, $pass, $db);
if ($conn->connect_error) {
    die("连接数据库失败: " . $conn->connect_error);
}
?>

3. Add game score

When the user plays the game, we need to store the user's game score in the database . The following is a simple sample code for adding game scores:

<?php
if ($_SERVER["REQUEST_METHOD"] === "POST") {
    // 获取POST请求参数
    $name = $_POST['name']; // 用户名
    $score = $_POST['score']; // 游戏分数
    $time = date('Y-m-d H:i:s'); // 当前时间

    // 插入数据
    $sql = "INSERT INTO game (name, score, time) VALUES ('$name', '$score', '$time')";
    if ($conn->query($sql) === TRUE) {
        echo "游戏分数添加成功";
    } else {
        echo "添加游戏分数失败: " . $conn->error;
    }
}
?>

4. Get game rankings

Users can learn about other players' game scores by viewing the game rankings. The following is a simple sample code to get the game rankings:

<?php
// 查询排行榜数据
$sql = "SELECT name, score, time FROM game ORDER BY score DESC LIMIT 10";
$result = $conn->query($sql);

// 输出排行榜数据
if ($result->num_rows > 0) {
    echo "<table>";
    echo "<tr><th>排名</th><th>用户名</th><th>游戏分数</th><th>时间</th></tr>";
    $rank = 1;
    while($row = $result->fetch_assoc()) {
        echo "<tr><td>{$rank}</td><td>{$row['name']}</td><td>{$row['score']}</td><td>{$row['time']}</td></tr>";
        $rank++;
    }
    echo "</table>";
} else {
    echo "暂无排行榜数据";
}
?>

5. Bind Mini Program API

Finally, we need to bind the PHP code to the mini program in the API. The following is a simple sample code:

// 添加游戏分数API
wx.request({
    url: 'http://yourdomain.com/add_score.php',
    method: 'POST',
    data: {
        name: '张三',
        score: 100
    },
    success: function(res) {
        console.log(res.data);
    }
});

// 获取游戏排行榜API
wx.request({
    url: 'http://yourdomain.com/get_rank.php',
    success: function(res) {
        console.log(res.data);
    }
});

Through the above steps, we can use PHP to implement the game function of the WeChat applet. When a user plays a game, the PHP code will store the game scores in the database and provide an API for the mini program to call to obtain the game ranking data.

It should be noted that the above code is only an example and needs to be modified according to specific needs in actual applications.

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