On the ServerGrove blog today they've posted the second in their series focusing on individual components of the Symfony2 framework. In this new post they look at the HttpKernel component, another of the foundational blocks of the framework.
In the second post of the Symfony2 components series we are going to talk about the HttpKernel component. If the HttpFoundation component provided the building blocks of the HTTP protocol, the HttpKernel component makes use of them to define an abstract process for converting a Request into a Response.
The post looks at the HttpKernelInterface, the "front door" to the component that takes in a Request object and makes its contents accessible. Also included is a list of some of the configuration options that can be used to alter its behavior, all based on events that fire during execution (the kernel is driven by events). There's also an example included of using the StackPHP middleware as decorators on the kernel.
Link: http://blog.servergrove.com/2013/09/30/symfony2-components-overview-httpkernel/
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