PHP MYsql |选择数字较小的前4项

SELECT * FROM items ORDER BY number ASC LIMIT 4;

<?php
$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);
}

// 执行SQL查询
$sql = "SELECT * FROM items ORDER BY number ASC LIMIT 4";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 输出每行数据
    while($row = $result->fetch_assoc()) {
        echo "id: " . $row["id"]. " - Number: " . $row["number"]. "<br>";
    }
} else {
    echo "0 结果";
}
$conn->close();
?>

CREATE INDEX idx_number ON items(number);