Eccube\ServiceProvider\DebugServiceProvider::register PHP Method

    public function register(Application $app)
    {
        $app['var_dumper.cloner'] = $app->share(function ($app) {
            $cloner = new VarCloner();
            if (isset($app['debug.max_items'])) {
                $cloner->setMaxItems($app['debug.max_items']);
            }
            if (isset($app['debug.max_string_length'])) {
                $cloner->setMaxString($app['debug.max_string_length']);
            }
            return $cloner;
        });
        $app['data_collector.templates'] = $app->share($app->extend('data_collector.templates', function ($templates) {
            return array_merge($templates, array(array('dump', '@Debug/Profiler/dump.html.twig')));
        }));
        $app['data_collector.dump'] = $app->share(function ($app) {
            return new DumpDataCollector($app['stopwatch'], $app['code.file_link_format']);
        });
        $app['data_collectors'] = $app->share($app->extend('data_collectors', function ($collectors, $app) {
            $collectors['dump'] = $app->share(function ($app) {
                return $app['data_collector.dump'];
            });
            return $collectors;
        }));
        $app['twig'] = $app->share($app->extend('twig', function ($twig, $app) {
            if (class_exists('\\Symfony\\Bridge\\Twig\\Extension\\DumpExtension')) {
                $twig->addExtension(new DumpExtension($app['var_dumper.cloner']));
            }
            return $twig;
        }));
        $app['twig.loader.filesystem'] = $app->share($app->extend('twig.loader.filesystem', function ($loader, $app) {
            $loader->addPath($app['debug.templates_path'], 'Debug');
            return $loader;
        }));
        $app['debug.templates_path'] = function () {
            $r = new \ReflectionClass('Symfony\\Bundle\\DebugBundle\\DependencyInjection\\Configuration');
            return dirname(dirname($r->getFileName())) . '/Resources/views';
        };
    }