php排行榜读数据库

<?php
// 数据库连接配置
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 查询语句
$sql = "SELECT username, score FROM users ORDER BY score DESC LIMIT 10";
$result = $conn->query($sql);

echo "<h1>排行榜</h1>";
echo "<table border='1'>
<tr>
<th>用户名</th>
<th>得分</th>
</tr>";

if ($result->num_rows > 0) {
    // 输出数据
    while($row = $result->fetch_assoc()) {
        echo "<tr>";
        echo "<td>" . $row["username"]. "</td>";
        echo "<td>" . $row["score"]. "</td>";
        echo "</tr>";
    }
} else {
    echo "<tr><td colspan='2'>没有数据</td></tr>";
}
echo "</table>";

// 关闭连接
$conn->close();
?>