global.php

<?php
return array(
    'db' => array(
        'driver' => 'PDO_SQLite',
        'dsn' => 'sqlite:data/todo.db',
        'driver_options' => array(
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_EMULATE_PREPARES => true
        )
    ),
    'service_manager' => array(
        'factories' => array(
            'Zend\Db\Adapter\Adapter'
                    => 'Zend\Db\Adapter\AdapterServiceFactory',
        ),
    ),
);