如何将mysqli查询中的文本放在一起

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

$query = "SELECT CONCAT(column1, ' ', column2, ' ', column3) AS combined_text FROM table_name";

$result = $mysqli->query($query);
if ($result) {
    // 处理查询结果
    while ($row = $result->fetch_assoc()) {
        echo $row['combined_text'] . "<br>";
    }
} else {
    echo "查询失败: " . $mysqli->error;
}

$mysqli->close();