A common layer
What do we want? Re-use at the web layer!
Superglobals and side-effecting output mechanisms of PHP make this challenging and force every framework to re-invent.
But Symfony's HttpKernelInterface provides a solid interface, which makes creating and sharing framework-agnostic HTTP filters a breeze!
HttpKernel
The HttpKernelInterface models web request and response as PHP objects, giving them value semantics.
What is Stack?
Stack is a convention for composing HttpKernelInterface middlewares.
By wrapping your application in decorators you can add new behaviour from the outside.
Conventions
A stack middleware is just an object that follows these conventions:
- 1Implement the HttpKernelInterface
- 2Take the decorated app as the first constructor argument
- 3Decorate the handle call, delegate to the decorated app
Yes, leveraging the HTTP interface is that easy!
Supporters
