This package contains a StackPHP middleware that enables you to push a Symfony application (actually a Kernel) directly on the middleware stack. The Symfony application will try to handle requests but instead of sending a 404 response if no route is found, the next middleware on the stack will be called.

Through Composer as mouf/symfony-middleware.

Simply use the SymfonyMiddleWare class in your middleware stack:

use Mouf\StackPhp\SymfonyMiddleware; use My\Symfony\Application; use Stack\Builder; $app = ... $symfonyApplication = new Application(...); $stack = (new Stack\Builder()) ->push(SymfonyMiddleware::class, $symfonyApplication); $app = $stack->resolve($app);

Why would I want to make a Symfony app a middleware? Because if every app becomes a middleware, we can easily chain middlewares together, and therefore, chain many frameworks in the same application... and this is cool :)