<?
    $host       = "localhost";
    $user       = "root";
    $password   = "";

    $db = "test2";
    $charset = "utf8";

    $opt = array(
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
    );

    $pdo = new PDO("mysql:host=$host;dbname=$db;charset=$charset", $user, $password, $opt);

    $items = $pdo->query("SELECT name FROM `users`");
    $row = $items->fetchColumn();
    var_dump($row);