php framework independent development

I am searching the solution. Some useful article.

Build your own PHP Framework with Symfony Components : http://www.sitepoint.com/build-php-framework-symfony-components/

Symfony2: How to create framework independent controllers? : http://php-and-symfony.matthiasnoback.nl/2014/06/how-to-create-framework-independent-controllers/

Symfony2: Framework independent controllers part 2: Don’t use annotations : http://php-and-symfony.matthiasnoback.nl/2014/06/don-t-use-annotations-in-your-controllers/

Symfony2: Framework independent controllers part 3: Loose ends : http://php-and-symfony.matthiasnoback.nl/2014/06/framework-independent-controllers-part-3/

Definitive Laravel 4 to Laravel 5 Migration Guide : http://slashnode.com/definitive-laravel-4-to-laravel-5-migration-guide/