PHP code example of slava-basko / container

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

slava-basko / container example snippets

$container = new Container();

$container['cache-file-path'] = '/tmp/app.cache';
$container[CacheStorage::class] = fn (Container $c) => new CacheStorage($c['cache-file-path']);
$container[Cache::class] = fn(Container $c) => new Cache($c[CacheStorage::class]);

$cache = $container[Cache::class];

$cache->get('currency-rates');

$container = new Container();

$container['log-file-path'] = 'your.log';
$container->add('file-handler', fn (Container $c) => new StreamHandler($c['log-file-path']), ['handler']);
$container->add('stdout-handler', fn (Container $c) => new StreamHandler('php://output'), ['handler']);
$container[Logger::class] = function (Container $c) {
    $logger = new Logger('app');
    $logger->setHandlers($c->getByTag('handler'));

    return $logger;
};


$logger = $container[Logger::class];

$logger->warning('Oops!');

class GameController extends Controller {
    public function getPotion(string $potionType)
    {
        try {
            $potionService = $this->container->getByTag($potionType)[0];

            return new Response($potionService->getPotion());
        } catch (NotFoundException) {
            return new Response('Unknown potion type: ' . $potionType, 400);
        } catch (Exception $exception) {
            $this->logger->error($exception->getMessage());
            return new Response('Sorry, internal error', 500);
        }
    }
}

$container = new Container();

$container->addShared(MySQLConnection::class, fn (Container $c) => new MySQLConnection());

$conn1 = $container->get(MySQLConnection::class);
$conn2 = $container->get(MySQLConnection::class);

assert(spl_object_hash($conn1) === spl_object_hash($conn2));

$container = new Container();
$container[\Logger::class] = fn () => new \Logger();
$container[\SomeRepository::class] = fn () => new \SomeRepository();
$container->extend(\BaseRepository::class, function (\BaseRepository $repository, Container $c) {
    $repository->setLogger($c[\Logger::class]);

    return $repository;
});

$repository = $container[\SomeRepository::class];
// From now on, every repository returned by the container and which `extends` BaseRepository has a Logger inside.

$container = new Container();
$container[A::class] = fn (Container $c) => new \A($c[B::class]);
$container[B::class] = fn (Container $c) => new \B($c[A::class]);

$a = $container[\A::class];
// CircularDependencyException: Circular dependency detected: A -> B -> A 

class FilesystemAdapter {
    // some logic inside
}
class Filesystem {
    /**
     * @var \FilesystemAdapter
     */
    private $adapter;

    public function __construct(FilesystemAdapter $adapter)
    {
        $this->adapter = $adapter;
    }
    
    // use $this->adapter as you need
}

$container = new AutowireContainer();

$filesystem = $container[Filesystem::class]
// $filesystem will be an instance of Filesystem that contains FilesystemAdapter inside

$container = new Container();
$container['k'] = 'v1';
$container['k'] = 'v2'; // RewriteAttemptException: The resource 'k' already defined.

$container = new Container();
$container['mysql-dsn'] = getenv('ENVIRONMENT') === 'prod' ? 'mysql://production-dsn' : 'mysql://development-dsn';

class LoggerServiceProvider {
    public function __invoke(Container $container): void
    {
        // Define your handlers, formatters, processors, and logger itself.
        // All Logger-related things are in one place.
    }
}

$container->addProvider(new LoggerServiceProvider());

$container = new Container();
$container->add(MasterMySqlClient::class, fn (Container $c) => new MasterMySqlClient($c['mysql-dsn']));
$container->add(SlaveMySqlClient::class, fn (Container $c) => new SlaveMySqlClient($c['mysql-dsn']));

$container->symlink(MasterMySqlClient::class, MySqlInterface::class);
$container->get(MySqlInterface::class); // MasterMySqlClient

$container->symlink(SlaveMySqlClient::class, MySqlInterface::class);
$container->get(MySqlInterface::class); // SlaveMySqlClient

$container = new Container();
// Add services and define dependencies

$graph = new Graphviz($container);
$graph->build();

// Define services, dependencies, etc.
$container = new Container();

// Wrap it.
$psrContainer = new PsrContainer($container);

$service = $psrContainer->get(Service::class);