html怎么获取数据库数据

<code class="php"><?php $servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 创建连接
$conn = new <a style=\'color:#f60; text-decoration:underline;\' href="https://www.php.cn/zt/15713.html" target="_blank">mysqli($servername, $username, $password, $dbname);

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

// 准备查询
$sql = "SELECT * FROM table_name";

// 执行查询
$result = $conn-&gt;query($sql);

// 检索数据
while ($row = $result-&gt;fetch_assoc()) {
  echo $row["column_name"];
}

// 关闭连接
$conn-&gt;close();
?&gt;