如何在PHP语言中从MySQL生成多变量sysID

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

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 执行查询语句
$sql = "SELECT column1, column2, column3 FROM your_table";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 获取查询结果
    while ($row = $result->fetch_assoc()) {
        // 生成多变量sysID
        $sysID = $row["column1"] . $row["column2"] . $row["column3"];

        // 使用sysID
        echo "生成的sysID为: " . $sysID . "<br>";
    }
} else {
    echo "没有结果";
}

$conn->close();
?>