db.config.php

<?php
// to match the book, copy this file to /path/to/code/config/db.config.php
return [
    'driver'   => 'mysql',
    'host'     => 'localhost',
    'dbname'   => 'php7cookbook',
    'user'     => 'cook',
    'password' => 'book',
    'errmode'  => PDO::ERRMODE_EXCEPTION,
];