php向数据库发送服务器域名

$servername = "数据库服务器地址";
$username = "数据库用户名";
$password = "数据库密码";
$dbname = "数据库名称";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接数据库失败: " . $conn->connect_error);
}

$domain = $_SERVER['SERVER_NAME'];

$sql = "INSERT INTO domains (domain_name) VALUES ('$domain')";

if ($conn->query($sql) === TRUE) {
    echo "域名插入成功";
} else {
    echo "插入域名时出错: " . $conn->error;
}

$conn->close();