bangpound / legacy-php-http-kernel
Symfony HttpKernel for supporting controllers that exit or return null.
1.1.1
2014-04-08 08:51 UTC
Requires
- php: >=5.3.3
- symfony/http-kernel: ~2.4
Requires (Dev)
- symfony/browser-kit: ~2.4
- symfony/class-loader: ~2.4
- symfony/process: ~2.4
This package is auto-updated.
Last update: 2024-10-12 03:36:31 UTC
README
Controllers in legacy PHP applications don't return Symfony Response objects, and they might return nothing or even exit. These low-level Symfony components provide a simple bridge to legacy PHP applications.
Usage
Use the HttpKernel
class and add the ShutdownListener
and OutputBufferListener
subscribers to the EventDispatcher
.
Working Example #1
This component is used in Drufony to run Drupal 7 in the Symfony2 framework.
Working Example #2
- Download and expand a recent version of WordPress.
- In the WordPress directory, create
composer.json
:
{ "require": { "bangpound/legacy-php-http-kernel": "1.0.*" } }
- Run
composer install
. - Replace WordPress's
index.php
front controller:
<?php require "vendor/autoload.php"; use Bangpound\LegacyPhp\EventListener\OutputBufferListener; use Bangpound\LegacyPhp\EventListener\ShutdownListener; use Bangpound\LegacyPhp\HttpKernel; use Symfony\Component\EventDispatcher\EventDispatcher; use Symfony\Component\HttpFoundation\Request; use Symfony\Component\HttpFoundation\RequestMatcher; use Symfony\Component\HttpKernel\Controller\ControllerResolver; use Symfony\Component\HttpKernel\Event\GetResponseEvent; use Symfony\Component\HttpKernel\KernelEvents; // Use a request attribute to identify requests which are legacy. $matcher = new RequestMatcher(); $matcher->matchAttribute('_legacy', 'true'); $dispatcher = new EventDispatcher(); // Event listeners make Symfony reponses from output buffer and // register a shutdown handler. $dispatcher->addSubscriber(new OutputBufferListener($matcher)); $dispatcher->addSubscriber(new ShutdownListener($matcher)); // Add a listener that modifies every request to have a controller // that imitates Wordpress index.php. $dispatcher->addListener(KernelEvents::REQUEST, function (GetResponseEvent $event) { $request = $event->getRequest(); $request->attributes->add(array( '_legacy' => 'true', '_controller' => function () { define('WP_USE_THEMES', true); require( dirname( __FILE__ ) . '/wp-blog-header.php' ); }, )); } ); // This HttpKernel has a shutdown method which completes the kernel // response cyle when a controller exits or dies. $kernel = new HttpKernel($dispatcher, new ControllerResolver()); // Symfony front controller code call_user_func(function () use ($kernel) { $request = Request::createFromGlobals(); $response = $kernel->handle($request); $response->send(); $kernel->terminate($request, $response); });
- Run
php -S localhost:8000