如何用PHP Mysql创建服务器机架表

<?php
// 连接MySQL数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 创建服务器机架表
$sql = "CREATE TABLE server_rack (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    location VARCHAR(30) NOT NULL,
    model VARCHAR(30) NOT NULL,
    status VARCHAR(10) NOT NULL,
    network VARCHAR(30),
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
)";

if ($conn->query($sql) === TRUE) {
    echo "服务器机架表创建成功";
} else {
    echo "创建失败: " . $conn->error;
}

$conn->close();
?>