0b39ce2315
* 2.6: (24 commits) [HttpKernel] Embed the original exception as previous to bounced exceptions [Enhancement] netbeans - force interactive shell when limited detection [FrameworkBundle] fixes displaying of deprecation notices. Revert "Added missing changelog entry" [Debug] Tweak docblocks [Debug] Rework a bit the PHP doc Added missing changelog entry [StringUtil] Fixed singularification of 'movies' [Debug] Renamed "context" key to "scope_vars" to avoid any ambiguity Fix some phpdocs for Twig extensions & templating helpers [Debug] Made code in ErrorHandler easier to read Use specialized config methods instead of the generic ifTrue() method Fix the AJAX profiling bumped Symfony version to 2.6.7 updated VERSION for 2.6.6 updated CHANGELOG for 2.6.6 Safe escaping of fragments for eval() bumped Symfony version to 2.3.28 updated VERSION for 2.3.27 update CONTRIBUTORS for 2.3.27 ... Conflicts: src/Symfony/Component/Debug/ErrorHandler.php src/Symfony/Component/HttpKernel/Kernel.php |
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.. | ||
Bundle | ||
CacheClearer | ||
CacheWarmer | ||
Config | ||
Controller | ||
DataCollector | ||
Debug | ||
DependencyInjection | ||
Event | ||
EventListener | ||
Exception | ||
Fragment | ||
HttpCache | ||
Log | ||
Profiler | ||
Tests | ||
.gitignore | ||
CHANGELOG.md | ||
Client.php | ||
composer.json | ||
HttpKernel.php | ||
HttpKernelInterface.php | ||
Kernel.php | ||
KernelEvents.php | ||
KernelInterface.php | ||
LICENSE | ||
phpunit.xml.dist | ||
README.md | ||
TerminableInterface.php | ||
UriSigner.php |
HttpKernel Component
HttpKernel provides the building blocks to create flexible and fast HTTP-based frameworks.
HttpKernelInterface
is the core interface of the Symfony full-stack
framework:
interface HttpKernelInterface
{
/**
* Handles a Request to convert it to a Response.
*
* @param Request $request A Request instance
*
* @return Response A Response instance
*/
function handle(Request $request, $type = self::MASTER_REQUEST, $catch = true);
}
It takes a Request
as an input and should return a Response
as an
output. Using this interface makes your code compatible with all frameworks
using the Symfony components. And this will give you many cool features for
free.
Creating a framework based on the Symfony components is really easy. Here is a very simple, but fully-featured framework based on the Symfony components:
$routes = new RouteCollection();
$routes->add('hello', new Route('/hello', array('_controller' =>
function (Request $request) {
return new Response(sprintf("Hello %s", $request->get('name')));
}
)));
$request = Request::createFromGlobals();
$context = new RequestContext();
$context->fromRequest($request);
$matcher = new UrlMatcher($routes, $context);
$dispatcher = new EventDispatcher();
$dispatcher->addSubscriber(new RouterListener($matcher));
$resolver = new ControllerResolver();
$kernel = new HttpKernel($dispatcher, $resolver);
$kernel->handle($request)->send();
This is all you need to create a flexible framework with the Symfony components.
Want to add an HTTP reverse proxy and benefit from HTTP caching and Edge Side Includes?
$kernel = new HttpKernel($dispatcher, $resolver);
$kernel = new HttpCache($kernel, new Store(__DIR__.'/cache'));
Want to functional test this small framework?
$client = new Client($kernel);
$crawler = $client->request('GET', '/hello/Fabien');
$this->assertEquals('Fabien', $crawler->filter('p > span')->text());
Want nice error pages instead of ugly PHP exceptions?
$dispatcher->addSubscriber(new ExceptionListener(function (Request $request) {
$msg = 'Something went wrong! ('.$request->get('exception')->getMessage().')';
return new Response($msg, 500);
}));
And that's why the simple looking HttpKernelInterface
is so powerful. It
gives you access to a lot of cool features, ready to be used out of the box,
with no efforts.
Resources
You can run the unit tests with the following command:
$ cd path/to/Symfony/Component/HttpKernel/
$ composer install
$ phpunit