Add Symfony

.env

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+# In all environments, the following files are loaded if they exist,
+# the later taking precedence over the former:
+#
+#  * .env                contains default values for the environment variables needed by the app
+#  * .env.local          uncommitted file with local overrides
+#  * .env.$APP_ENV       committed environment-specific defaults
+#  * .env.$APP_ENV.local uncommitted environment-specific overrides
+#
+# Real environment variables win over .env files.
+#
+# DO NOT DEFINE PRODUCTION SECRETS IN THIS FILE NOR IN ANY OTHER COMMITTED FILES.
+#
+# Run "composer dump-env prod" to compile .env files for production use (requires symfony/flex >=1.2).
+# https://symfony.com/doc/current/best_practices/configuration.html#infrastructure-related-configuration
+
+###> symfony/framework-bundle ###
+APP_ENV=dev
+APP_SECRET=1988f7ff2bee51b4961006c7e69d2e26
+#TRUSTED_PROXIES=127.0.0.1,127.0.0.2
+#TRUSTED_HOSTS='^localhost|example\.com$'
+###< symfony/framework-bundle ###

.gitignore

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+
+###> symfony/framework-bundle ###
+/.env.local
+/.env.local.php
+/.env.*.local
+/public/bundles/
+/var/
+/vendor/
+###< symfony/framework-bundle ###

bin/console

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+#!/usr/bin/env php
+<?php
+
+use App\Kernel;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Component\Console\Input\ArgvInput;
+use Symfony\Component\Debug\Debug;
+
+set_time_limit(0);
+
+require dirname(__DIR__).'/vendor/autoload.php';
+
+if (!class_exists(Application::class)) {
+    throw new RuntimeException('You need to add "symfony/framework-bundle" as a Composer dependency.');
+}
+
+$input = new ArgvInput();
+if (null !== $env = $input->getParameterOption(['--env', '-e'], null, true)) {
+    putenv('APP_ENV='.$_SERVER['APP_ENV'] = $_ENV['APP_ENV'] = $env);
+}
+
+if ($input->hasParameterOption('--no-debug', true)) {
+    putenv('APP_DEBUG='.$_SERVER['APP_DEBUG'] = $_ENV['APP_DEBUG'] = '0');
+}
+
+require dirname(__DIR__).'/config/bootstrap.php';
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+
+    if (class_exists(Debug::class)) {
+        Debug::enable();
+    }
+}
+
+$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
+$application = new Application($kernel);
+$application->run($input);

composer.json

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+{
+    "type": "project",
+    "license": "proprietary",
+    "require": {
+        "php": "^7.1.3",
+        "ext-ctype": "*",
+        "ext-iconv": "*",
+        "symfony/console": "4.2.*",
+        "symfony/dotenv": "4.2.*",
+        "symfony/flex": "^1.1",
+        "symfony/framework-bundle": "4.2.*",
+        "symfony/yaml": "4.2.*"
+    },
+    "config": {
+        "preferred-install": {
+            "*": "dist"
+        },
+        "sort-packages": true
+    },
+    "autoload": {
+        "psr-4": {
+            "App\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "App\\Tests\\": "tests/"
+        }
+    },
+    "replace": {
+        "paragonie/random_compat": "2.*",
+        "symfony/polyfill-ctype": "*",
+        "symfony/polyfill-iconv": "*",
+        "symfony/polyfill-php71": "*",
+        "symfony/polyfill-php70": "*",
+        "symfony/polyfill-php56": "*"
+    },
+    "scripts": {
+        "auto-scripts": {
+            "cache:clear": "symfony-cmd",
+            "assets:install %PUBLIC_DIR%": "symfony-cmd"
+        },
+        "post-install-cmd": [
+            "@auto-scripts"
+        ],
+        "post-update-cmd": [
+            "@auto-scripts"
+        ]
+    },
+    "conflict": {
+        "symfony/symfony": "*"
+    },
+    "extra": {
+        "symfony": {
+            "allow-contrib": false,
+            "require": "4.2.*"
+        }
+    }
+}

config/bootstrap.php

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+<?php
+
+use Symfony\Component\Dotenv\Dotenv;
+
+require dirname(__DIR__).'/vendor/autoload.php';
+
+// Load cached env vars if the .env.local.php file exists
+// Run "composer dump-env prod" to create it (requires symfony/flex >=1.2)
+if (is_array($env = @include dirname(__DIR__).'/.env.local.php')) {
+    $_SERVER += $env;
+    $_ENV += $env;
+} elseif (!class_exists(Dotenv::class)) {
+    throw new RuntimeException('Please run "composer require symfony/dotenv" to load the ".env" files configuring the application.');
+} else {
+    // load all the .env files
+    (new Dotenv())->loadEnv(dirname(__DIR__).'/.env');
+}
+
+$_SERVER['APP_ENV'] = $_ENV['APP_ENV'] = ($_SERVER['APP_ENV'] ?? $_ENV['APP_ENV'] ?? null) ?: 'dev';
+$_SERVER['APP_DEBUG'] = $_SERVER['APP_DEBUG'] ?? $_ENV['APP_DEBUG'] ?? 'prod' !== $_SERVER['APP_ENV'];
+$_SERVER['APP_DEBUG'] = $_ENV['APP_DEBUG'] = (int) $_SERVER['APP_DEBUG'] || filter_var($_SERVER['APP_DEBUG'], FILTER_VALIDATE_BOOLEAN) ? '1' : '0';

config/bundles.php

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+<?php
+
+return [
+    Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
+];

config/packages/cache.yaml

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+framework:
+    cache:
+        # Put the unique name of your app here: the prefix seed
+        # is used to compute stable namespaces for cache keys.
+        #prefix_seed: your_vendor_name/app_name
+
+        # The app cache caches to the filesystem by default.
+        # Other options include:
+
+        # Redis
+        #app: cache.adapter.redis
+        #default_redis_provider: redis://localhost
+
+        # APCu (not recommended with heavy random-write workloads as memory fragmentation can cause perf issues)
+        #app: cache.adapter.apcu
+
+        # Namespaced pools use the above "app" backend by default
+        #pools:
+            #my.dedicated.cache: ~

config/packages/dev/routing.yaml

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+framework:
+    router:
+        strict_requirements: true

config/packages/framework.yaml

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+framework:
+    secret: '%env(APP_SECRET)%'
+    #default_locale: en
+    #csrf_protection: true
+    #http_method_override: true
+
+    # Enables session support. Note that the session will ONLY be started if you read or write from it.
+    # Remove or comment this section to explicitly disable session support.
+    session:
+        handler_id: ~
+        cookie_secure: auto
+        cookie_samesite: lax
+
+    #esi: true
+    #fragments: true
+    php_errors:
+        log: true

config/packages/routing.yaml

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+framework:
+    router:
+        strict_requirements: ~
+        utf8: true

config/packages/test/framework.yaml

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+framework:
+    test: true
+    session:
+        storage_id: session.storage.mock_file

config/packages/test/routing.yaml

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+framework:
+    router:
+        strict_requirements: true

config/routes.yaml

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+#index:
+#    path: /
+#    controller: App\Controller\DefaultController::index

config/services.yaml

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+# This file is the entry point to configure your own services.
+# Files in the packages/ subdirectory configure your dependencies.
+
+# Put parameters here that don't need to change on each machine where the app is deployed
+# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
+parameters:
+
+services:
+    # default configuration for services in *this* file
+    _defaults:
+        autowire: true      # Automatically injects dependencies in your services.
+        autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
+
+    # makes classes in src/ available to be used as services
+    # this creates a service per class whose id is the fully-qualified class name
+    App\:
+        resource: '../src/*'
+        exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}'
+
+    # controllers are imported separately to make sure services can be injected
+    # as action arguments even if you don't extend any base controller class
+    App\Controller\:
+        resource: '../src/Controller'
+        tags: ['controller.service_arguments']
+
+    # add more service definitions when explicit configuration is needed
+    # please note that last definitions always *replace* previous ones

public/index.php

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+<?php
+
+use App\Kernel;
+use Symfony\Component\Debug\Debug;
+use Symfony\Component\HttpFoundation\Request;
+
+require dirname(__DIR__).'/config/bootstrap.php';
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+
+    Debug::enable();
+}
+
+if ($trustedProxies = $_SERVER['TRUSTED_PROXIES'] ?? $_ENV['TRUSTED_PROXIES'] ?? false) {
+    Request::setTrustedProxies(explode(',', $trustedProxies), Request::HEADER_X_FORWARDED_ALL ^ Request::HEADER_X_FORWARDED_HOST);
+}
+
+if ($trustedHosts = $_SERVER['TRUSTED_HOSTS'] ?? $_ENV['TRUSTED_HOSTS'] ?? false) {
+    Request::setTrustedHosts([$trustedHosts]);
+}
+
+$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
+$request = Request::createFromGlobals();
+$response = $kernel->handle($request);
+$response->send();
+$kernel->terminate($request, $response);

src/Kernel.php

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+<?php
+
+namespace App;
+
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Component\Config\Loader\LoaderInterface;
+use Symfony\Component\Config\Resource\FileResource;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\HttpKernel\Kernel as BaseKernel;
+use Symfony\Component\Routing\RouteCollectionBuilder;
+
+class Kernel extends BaseKernel
+{
+    use MicroKernelTrait;
+
+    const CONFIG_EXTS = '.{php,xml,yaml,yml}';
+
+    public function registerBundles()
+    {
+        $contents = require $this->getProjectDir().'/config/bundles.php';
+        foreach ($contents as $class => $envs) {
+            if ($envs[$this->environment] ?? $envs['all'] ?? false) {
+                yield new $class();
+            }
+        }
+    }
+
+    protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader)
+    {
+        $container->addResource(new FileResource($this->getProjectDir().'/config/bundles.php'));
+        $container->setParameter('container.dumper.inline_class_loader', true);
+        $confDir = $this->getProjectDir().'/config';
+
+        $loader->load($confDir.'/{packages}/*'.self::CONFIG_EXTS, 'glob');
+        $loader->load($confDir.'/{packages}/'.$this->environment.'/**/*'.self::CONFIG_EXTS, 'glob');
+        $loader->load($confDir.'/{services}'.self::CONFIG_EXTS, 'glob');
+        $loader->load($confDir.'/{services}_'.$this->environment.self::CONFIG_EXTS, 'glob');
+    }
+
+    protected function configureRoutes(RouteCollectionBuilder $routes)
+    {
+        $confDir = $this->getProjectDir().'/config';
+
+        $routes->import($confDir.'/{routes}/*'.self::CONFIG_EXTS, '/', 'glob');
+        $routes->import($confDir.'/{routes}/'.$this->environment.'/**/*'.self::CONFIG_EXTS, '/', 'glob');
+        $routes->import($confDir.'/{routes}'.self::CONFIG_EXTS, '/', 'glob');
+    }
+}

symfony.lock

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+{
+    "psr/cache": {
+        "version": "1.0.1"
+    },
+    "psr/container": {
+        "version": "1.0.0"
+    },
+    "psr/log": {
+        "version": "1.1.0"
+    },
+    "psr/simple-cache": {
+        "version": "1.0.1"
+    },
+    "symfony/cache": {
+        "version": "v4.2.3"
+    },
+    "symfony/config": {
+        "version": "v4.2.3"
+    },
+    "symfony/console": {
+        "version": "3.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "master",
+            "version": "3.3",
+            "ref": "0fa049c19069a65f52c1c181d64be3de672c1504"
+        }
+    },
+    "symfony/contracts": {
+        "version": "v1.0.2"
+    },
+    "symfony/debug": {
+        "version": "v4.2.3"
+    },
+    "symfony/dependency-injection": {
+        "version": "v4.2.3"
+    },
+    "symfony/dotenv": {
+        "version": "v4.2.3"
+    },
+    "symfony/event-dispatcher": {
+        "version": "v4.2.3"
+    },
+    "symfony/filesystem": {
+        "version": "v4.2.3"
+    },
+    "symfony/finder": {
+        "version": "v4.2.3"
+    },
+    "symfony/flex": {
+        "version": "1.0",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "master",
+            "version": "1.0",
+            "ref": "dc3fc2e0334a4137c47cfd5a3ececc601fa61a0b"
+        }
+    },
+    "symfony/framework-bundle": {
+        "version": "4.2",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "master",
+            "version": "4.2",
+            "ref": "5bb3a8c27df824d195fa68bb635d074854f8498f"
+        }
+    },
+    "symfony/http-foundation": {
+        "version": "v4.2.3"
+    },
+    "symfony/http-kernel": {
+        "version": "v4.2.3"
+    },
+    "symfony/polyfill-mbstring": {
+        "version": "v1.10.0"
+    },
+    "symfony/routing": {
+        "version": "4.2",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "master",
+            "version": "4.2",
+            "ref": "5374e24d508ba8fd6ba9eb15170255fdb778316a"
+        }
+    },
+    "symfony/var-exporter": {
+        "version": "v4.2.3"
+    },
+    "symfony/yaml": {
+        "version": "v4.2.3"
+    }
+}