gistfile1.php

<?php
require "../autoload.php";

$pdo = new Aura\Sql\ExtendedPdo('sqlite::memory:');
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

$pdo->exec('CREATE TABLE foo (bar VARCHAR(20))');

$stm = 'INSERT INTO foo (bar) VALUES (:bar)';

$pdo->bindValues(array('bar' => 'baz'));
$pdo->exec($stm);

$pdo->bindValues(array('bar' => null));
$pdo->exec($stm);

$rows = $pdo->fetchAll('SELECT * FROM foo');
var_dump($rows);