[ 'name' => 'blog-app', 'username' => 'root', 'password' => '', 'connection' => 'mysql:host=127.0.0.1', 'options' => [ PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION ] ], 'mailer' => [ 'host' => '', 'username' => '', 'password' => '', 'from' => '' ], 'port' => '' // e.g. ':8080' ];