/module/Blog/config/module.config.php

<?php
// In /module/Blog/config/module.config.php:
namespace Blog;
use Zend\ServiceManager\Factory\InvokableFactory;




return [
        // This lines opens the configuration for the RouteManager
        'router' => [
                // Open configuration for all possible routes
                'routes' => [
                        // Define a new route called "blog"
                        'blog' => [
                                // Define a "literal" route type:
                                'type' => 'literal',
                                // Configure the route itself
                                'options' => [
                                        // Listen to "/blog" as uri:
                                        'route'    => '/blog',
                                        // Define default controller and action to be called when
                                        // this route is matched
                                        'defaults' => [
                                                'controller' => Controller\ListController::class,
                                                'action'     => 'index',
                                        ],
                                ],
                        ],
                ],
        ],

        'controllers' => [
                'factories' => [
                        Controller\ListController::class => Factory\ListControllerFactory::class,
                ],
        ],

        'service_manager' => [
                'aliases' => [
                        //Model\PostRepositoryInterface::class => Model\PostRepository::class,
                        Model\PostRepositoryInterface::class => Mapper\ZendDbSqlRepository::class,
                ],
                'factories' => [
                        Model\PostRepository::class => InvokableFactory::class,
                        Mapper\ZendDbSqlRepository::class => Factory\ZendDbSqlRepositoryFactory::class,



                ],
        ],

        'view_manager' => [
                'template_path_stack' => [
                        __DIR__ . '/../view',
                ],
        ],

        'db' => [
                'driver' => 'Pdo',
                'username' => 'root',
                'password' => 'Adminadmin@123',
                'dsn' => 'mysql:dbname=test_zf3;host=localhost',
                'driver_options' => [
                        \PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
                ],

        ]

];