Fatal error: Declaración de registerContainerConfiguration debe ser compatible con el de Kernel :: registerContainerConfiguration

Question

conozco a nadie por qué ocurre esto?

en la medida que puedo conseguir, el método de clase hija se declara en la misma forma que los padres de.

Gracias!

aquí está mi código del núcleo:

<?php

require_once __DIR__.'/../src/autoload.php';

use Symfony\Framework\Kernel;
use Symfony\Components\DependencyInjection\Loader\YamlFileLoader as ContainerLoader;
use Symfony\Components\Routing\Loader\YamlFileLoader as RoutingLoader;

use Symfony\Framework\KernelBundle;
use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
use Symfony\Bundle\ZendBundle\ZendBundle;
use Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle;
use Symfony\Bundle\DoctrineBundle\DoctrineBundle;
use Symfony\Bundle\DoctrineMigrationsBundle\DoctrineMigrationsBundle;
use Symfony\Bundle\DoctrineMongoDBBundle\DoctrineMongoDBBundle;
use Symfony\Bundle\PropelBundle\PropelBundle;
use Symfony\Bundle\TwigBundle\TwigBundle;
use Application\UfaraBundle\UfaraBundle;



class UfaraKernel extends Kernel {
    public function registerRootDir() {
        return __DIR__;
    }

    public function registerBundles() {
        $bundles = array(
                new KernelBundle(),
                new FrameworkBundle(),
                new ZendBundle(),
                new SwiftmailerBundle(),
                new DoctrineBundle(),
                //new DoctrineMigrationsBundle(),
                //new DoctrineMongoDBBundle(),
                //new PropelBundle(),
                //new TwigBundle(),
                new UfaraBundle(),
        );

        if ($this->isDebug()) {
        }

        return $bundles;
    }

    public function registerBundleDirs() {
        $bundles = array(
                'Application'        => __DIR__.'/../src/Application',
                'Bundle'             => __DIR__.'/../src/Bundle',
                'Symfony\\Framework' => __DIR__.'/../src/vendor/symfony/src/Symfony/Framework',
                'Symfony\\Bundle'    => __DIR__.'/../src/vendor/symfony/src/Symfony/Bundle',
        );

        return $bundles;
    }

    public function registerContainerConfiguration(LoaderInterface $loader) {
        return $loader->load(__DIR__.'/config/config_'.$this->getEnvironment().'.yml');
    }

    public function registerRoutes() {
        $loader = new RoutingLoader($this->getBundleDirs());

        return $loader->load(__DIR__.'/config/routing.yml');
    }
}

aquí es el código de la clase padre:

<?php

namespace Symfony\Framework;

use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
use Symfony\Component\DependencyInjection\Resource\FileResource;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
use Symfony\Component\DependencyInjection\Loader\DelegatingLoader;
use Symfony\Component\DependencyInjection\Loader\LoaderResolver;
use Symfony\Component\DependencyInjection\Loader\LoaderInterface;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
use Symfony\Component\DependencyInjection\Loader\IniFileLoader;
use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
use Symfony\Component\DependencyInjection\Loader\ClosureLoader;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Framework\ClassCollectionLoader;

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * The Kernel is the heart of the Symfony system. It manages an environment
 * that can host bundles.
 *
 * @author     Fabien Potencier <fabien.potencier@symfony-project.org>
 */
abstract class Kernel implements HttpKernelInterface, \Serializable
{
    protected $bundles;
    protected $bundleDirs;
    protected $container;
    protected $rootDir;
    protected $environment;
    protected $debug;
    protected $booted;
    protected $name;
    protected $startTime;
    protected $request;

    const VERSION = '2.0.0-DEV';

    /**
     * Constructor.
     *
     * @param string  $environment The environment
     * @param Boolean $debug       Whether to enable debugging or not
     */
    public function __construct($environment, $debug)
    {
        $this->environment = $environment;
        $this->debug = (Boolean) $debug;
        $this->booted = false;
        $this->rootDir = realpath($this->registerRootDir());
        $this->name = basename($this->rootDir);

        if ($this->debug) {
            ini_set('display_errors', 1);
            error_reporting(-1);

            $this->startTime = microtime(true);
        } else {
            ini_set('display_errors', 0);
        }
    }

    public function __clone()
    {
        if ($this->debug) {
            $this->startTime = microtime(true);
        }

        $this->booted = false;
        $this->container = null;
        $this->request = null;
    }

    abstract public function registerRootDir();

    abstract public function registerBundles();

    abstract public function registerBundleDirs();

    abstract public function registerContainerConfiguration(LoaderInterface $loader);

    /**
     * Checks whether the current kernel has been booted or not.
     *
     * @return boolean $booted
     */
    public function isBooted()
    {
        return $this->booted;
    }

    /**
     * Boots the current kernel.
     *
     * This method boots the bundles, which MUST set
     * the DI container.
     *
     * @throws \LogicException When the Kernel is already booted
     */
    public function boot()
    {
        if (true === $this->booted) {
            throw new \LogicException('The kernel is already booted.');
        }

        if (!$this->isDebug()) {
            require_once __DIR__.'/bootstrap.php';
        }

        $this->bundles = $this->registerBundles();
        $this->bundleDirs = $this->registerBundleDirs();
        $this->container = $this->initializeContainer();

        // load core classes
        ClassCollectionLoader::load(
            $this->container->getParameter('kernel.compiled_classes'),
            $this->container->getParameter('kernel.cache_dir'),
            'classes',
            $this->container->getParameter('kernel.debug'),
            true
        );

        foreach ($this->bundles as $bundle) {
            $bundle->setContainer($this->container);
            $bundle->boot();
        }

        $this->booted = true;
    }

    /**
     * Shutdowns the kernel.
     *
     * This method is mainly useful when doing functional testing.
     */
    public function shutdown()
    {
        $this->booted = false;

        foreach ($this->bundles as $bundle) {
            $bundle->shutdown();
            $bundle->setContainer(null);
        }

        $this->container = null;
    }

    /**
     * Reboots the kernel.
     *
     * This method is mainly useful when doing functional testing.
     *
     * It is a shortcut for the call to shutdown() and boot().
     */
    public function reboot()
    {
        $this->shutdown();
        $this->boot();
    }

    /**
     * Gets the Request instance associated with the master request.
     *
     * @return Request A Request instance
     */
    public function getRequest()
    {
        return $this->request;
    }

    /**
     * Handles a request to convert it to a response by calling the HttpKernel service.
     *
     * @param  Request $request A Request instance
     * @param  integer $type    The type of the request (one of HttpKernelInterface::MASTER_REQUEST or HttpKernelInterface::SUB_REQUEST)
     * @param  Boolean $raw     Whether to catch exceptions or not
     *
     * @return Response $response A Response instance
     */
    public function handle(Request $request = null, $type = HttpKernelInterface::MASTER_REQUEST, $raw = false)
    {
        if (false === $this->booted) {
            $this->boot();
        }

        if (null === $request) {
            $request = $this->container->get('request');
        } else {
            $this->container->set('request', $request);
        }

        if (HttpKernelInterface::MASTER_REQUEST === $type) {
            $this->request = $request;
        }

        $response = $this->container->getHttpKernelService()->handle($request, $type, $raw);

        $this->container->set('request', $this->request);

        return $response;
    }

    /**
     * Gets the directories where bundles can be stored.
     *
     * @return array An array of directories where bundles can be stored
     */
    public function getBundleDirs()
    {
        return $this->bundleDirs;
    }

    /**
     * Gets the registered bundle names.
     *
     * @return array An array of registered bundle names
     */
    public function getBundles()
    {
        return $this->bundles;
    }

    /**
     * Checks if a given class name belongs to an active bundle.
     *
     * @param string $class A class name
     *
     * @return Boolean true if the class belongs to an active bundle, false otherwise
     */
    public function isClassInActiveBundle($class)
    {
        foreach ($this->bundles as $bundle) {
            $bundleClass = get_class($bundle);
            if (0 === strpos($class, substr($bundleClass, 0, strrpos($bundleClass, '\\')))) {
                return true;
            }
        }

        return false;
    }

    /**
     * Returns the Bundle name for a given class.
     *
     * @param string $class A class name
     *
     * @return string The Bundle name or null if the class does not belongs to a bundle
     */
    public function getBundleForClass($class)
    {
        $namespace = substr($class, 0, strrpos($class, '\\'));
        foreach (array_keys($this->getBundleDirs()) as $prefix) {
            if (0 === $pos = strpos($namespace, $prefix)) {
                return substr($namespace, strlen($prefix) + 1, strpos($class, 'Bundle\\') + 7);
            }
        }
    }

    public function getName()
    {
        return $this->name;
    }

    public function getSafeName()
    {
        return preg_replace('/[^a-zA-Z0-9_]+/', '', $this->name);
    }

    public function getEnvironment()
    {
        return $this->environment;
    }

    public function isDebug()
    {
        return $this->debug;
    }

    public function getRootDir()
    {
        return $this->rootDir;
    }

    public function getContainer()
    {
        return $this->container;
    }

    public function getStartTime()
    {
        return $this->debug ? $this->startTime : -INF;
    }

    public function getCacheDir()
    {
        return $this->rootDir.'/cache/'.$this->environment;
    }

    public function getLogDir()
    {
        return $this->rootDir.'/logs';
    }

    protected function initializeContainer()
    {
        $class = $this->getSafeName().ucfirst($this->environment).($this->debug ? 'Debug' : '').'ProjectContainer';
        $location = $this->getCacheDir().'/'.$class;
        $reload = $this->debug ? $this->needsReload($class, $location) : false;

        if ($reload || !file_exists($location.'.php')) {
            $this->buildContainer($class, $location.'.php');
        }

        require_once $location.'.php';

        $container = new $class();
        $container->set('kernel', $this);

        return $container;
    }

    public function getKernelParameters()
    {
        $bundles = array();
        foreach ($this->bundles as $bundle) {
            $bundles[] = get_class($bundle);
        }

        return array_merge(
            array(
                'kernel.root_dir'         => $this->rootDir,
                'kernel.environment'      => $this->environment,
                'kernel.debug'            => $this->debug,
                'kernel.name'             => $this->name,
                'kernel.cache_dir'        => $this->getCacheDir(),
                'kernel.logs_dir'         => $this->getLogDir(),
                'kernel.bundle_dirs'      => $this->bundleDirs,
                'kernel.bundles'          => $bundles,
                'kernel.charset'          => 'UTF-8',
                'kernel.compiled_classes' => array(),
            ),
            $this->getEnvParameters()
        );
    }

    protected function getEnvParameters()
    {
        $parameters = array();
        foreach ($_SERVER as $key => $value) {
            if ('SYMFONY__' === substr($key, 0, 9)) {
                $parameters[strtolower(str_replace('__', '.', substr($key, 9)))] = $value;
            }
        }

        return $parameters;
    }

    protected function needsReload($class, $location)
    {
        if (!file_exists($location.'.meta') || !file_exists($location.'.php')) {
            return true;
        }

        $meta = unserialize(file_get_contents($location.'.meta'));
        $time = filemtime($location.'.php');
        foreach ($meta as $resource) {
            if (!$resource->isUptodate($time)) {
                return true;
            }
        }

        return false;
    }

    protected function buildContainer($class, $file)
    {
        $parameterBag = new ParameterBag($this->getKernelParameters());

        $container = new ContainerBuilder($parameterBag);
        foreach ($this->bundles as $bundle) {
            $bundle->registerExtensions($container);

            if ($this->debug) {
                $container->addObjectResource($bundle);
            }
        }

        if (null !== $cont = $this->registerContainerConfiguration($this->getContainerLoader($container))) {
            $container->merge($cont);
        }
        $container->freeze();

        foreach (array('cache', 'logs') as $name) {
            $dir = $container->getParameter(sprintf('kernel.%s_dir', $name));
            if (!is_dir($dir)) {
                if (false === @mkdir($dir, 0777, true)) {
                    die(sprintf('Unable to create the %s directory (%s)', $name, dirname($dir)));
                }
            } elseif (!is_writable($dir)) {
                die(sprintf('Unable to write in the %s directory (%s)', $name, $dir));
            }
        }

        // cache the container
        $dumper = new PhpDumper($container);
        $content = $dumper->dump(array('class' => $class));
        if (!$this->debug) {
            $content = self::stripComments($content);
        }
        $this->writeCacheFile($file, $content);

        if ($this->debug) {
            $container->addObjectResource($this);

            // save the resources
            $this->writeCacheFile($this->getCacheDir().'/'.$class.'.meta', serialize($container->getResources()));
        }
    }

    protected function getContainerLoader(ContainerInterface $container)
    {
        $resolver = new LoaderResolver(array(
            new XmlFileLoader($container, $this->getBundleDirs()),
            new YamlFileLoader($container, $this->getBundleDirs()),
            new IniFileLoader($container, $this->getBundleDirs()),
            new PhpFileLoader($container, $this->getBundleDirs()),
            new ClosureLoader($container),
        ));

        return new DelegatingLoader($resolver);
    }

    /**
     * Removes comments from a PHP source string.
     *
     * We don't use the PHP php_strip_whitespace() function
     * as we want the content to be readable and well-formatted.
     *
     * @param string $source A PHP string
     *
     * @return string The PHP string with the comments removed
     */
    static public function stripComments($source)
    {
        if (!function_exists('token_get_all')) {
            return $source;
        }

        $output = '';
        foreach (token_get_all($source) as $token) {
            if (is_string($token)) {
                $output .= $token;
            } elseif (!in_array($token[0], array(T_COMMENT, T_DOC_COMMENT))) {
                $output .= $token[1];
            }
        }

        // replace multiple new lines with a single newline
        $output = preg_replace(array('/\s+$/Sm', '/\n+/S'), "\n", $output);

        // reformat {} "a la python"
        $output = preg_replace(array('/\n\s*\{/', '/\n\s*\}/'), array(' {', ' }'), $output);

        return $output;
    }

    protected function writeCacheFile($file, $content)
    {
        $tmpFile = tempnam(dirname($file), basename($file));
        if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $file)) {
            chmod($file, 0644);

            return;
        }

        throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $file));
    }

    public function serialize()
    {
        return serialize(array($this->environment, $this->debug));
    }

    public function unserialize($data)
    {
        list($environment, $debug) = unserialize($data);

        $this->__construct($environment, $debug);
    }
}

Answer 1

Sus respuesta se encuentra en los espacios de nombres importados. En el expediente del Kernel, hay una cláusula de uso:

use Symfony\Component\DependencyInjection\Loader\LoaderInterface;

Así que los lazos LoaderInterface a la Symfony\Component\DependencyInjection\Loader\LoaderInterface clase completo de espacio de nombres.

Básicamente lo que la firma:

public function registerContainerConfiguration(Symfony\Component\DependencyInjection\Loader\LoaderInterface $loader);

En su clase, que no se importan ese espacio de nombres. Así que PHP por defecto asume la clase está en el espacio de nombres (ya que ninguno de los espacios de nombres importados que tienen nombre de la interfaz).

Así que su firma es (ya que no se declara un espacio de nombres):

public function registerContainerConfiguration(\LoaderInterface $loader);

Así que para conseguir que coinciden, sólo tiene que añadir la línea use a la parte superior del archivo:

use Symfony\Component\DependencyInjection\Loader\LoaderInterface;