Beside downloading your dependencies, Composer generates a ``vendor/autoload.php`` file,

which takes care of autoloading for all the files in the Symfony Framework as well as

the files mentioned in the autoload section of your `composer.json`.

the files mentioned in the autoload section of your ``composer.json``.

Core to Symfony's philosophy is the idea that an application's main job is

to interpret each request and return a response. To this end, Symfony2 provides