将msql中的数据提取到select选择器中进行编辑

<?php
// 连接到 MySQL 数据库
$servername = "your_servername";
$username = "your_username";
$password = "your_password";
$dbname = "your_dbname";
$conn = new mysqli($servername, $username, $password, $dbname);

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

// 执行查询
$sql = "SELECT column_name FROM table_name";
$result = $conn->query($sql);

// 检查查询结果是否为空
if ($result->num_rows > 0) {
    // 输出每一行数据
    echo "<select>";
    while($row = $result->fetch_assoc()) {
        echo "<option>" . $row["column_name"] . "</option>";
    }
    echo "</select>";
} else {
    echo "没有结果";
}

// 关闭连接
$conn->close();
?>