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The Symfony PHP framework
The HttpKernel component provides a structured process for converting a Request into a Response.
The HttpFoundation component defines an object-oriented layer for the HTTP specification.
Slim is a PHP micro framework that helps you quickly write simple yet powerful web applications and APIs.
[READ-ONLY] Flow Application Framework, provides MVC, DI, AOP, Security, …
Yii 2: The Fast, Secure and Professional PHP Framework
SilverStripe Framework, the MVC framework that powers SilverStripe CMS