php mysql -从while循环中插入一个查询

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

$conn = mysqli_connect($servername, $username, $password, $dbname);
if (!$conn) {
    die("连接失败: " . mysqli_connect_error());
}

// 执行查询
$sql = "SELECT column1, column2 FROM your_table";
$result = mysqli_query($conn, $sql);

// 循环插入数据
while ($row = mysqli_fetch_assoc($result)) {
    $column1 = $row['column1'];
    $column2 = $row['column2'];

    // 插入数据到目标表
    $insertSql = "INSERT INTO target_table (column1, column2) VALUES ('$column1', '$column2')";
    mysqli_query($conn, $insertSql);
}

// 关闭数据库连接
mysqli_close($conn);
?>