The symfony/http-kernel package offers a well-organized process for transmuting a Request into a Response. Leveraging the EventDispatcher component, this package has the flexibility to create full-stack frameworks, micro-frameworks or even advanced CMS systems like Drupal. It plays a critical role in managing HTTP requests and handling responses in an application.
To use the symfony/http-kernel in your PHP projects, you will first have to install the package using Composer. You can do so with the following command:
composer require symfony/http-kernel
Then, you can make use of it in your PHP code. Here's an elementary example of how you can utilize the HttpKernel:
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\HttpKernel;
use Symfony\Component\HttpKernel\Controller\ControllerResolver;
use Symfony\Component\EventDispatcher\EventDispatcher;
$dispatcher = new EventDispatcher();
$resolver = new ControllerResolver();
$kernel = new HttpKernel($dispatcher, $resolver);
$request = Request::createFromGlobals();
$response = $kernel->handle($request);
$response->send();
$kernel->terminate($request, $response);
In this example, we create a new instance of the HttpKernel with an EventDispatcher and a ControllerResolver. Then, we create a Request object from the global PHP variables. This Request object is then passed to the handle method of our kernel, which will return a Response. Lastly, this response is sent to the client, and the request-response cycle is terminated.
The official and in-depth documentation for symfony/http-kernel can be found at Symfony's official website. This resource provides a comprehensive guide on how to use the symfony/http-kernel package plus all of its functionalities and features. For contribution guidelines or to access the main Symfony repository or report issues, the links are provided in the original readme file of the symfony/http-kernel package on Github.
