ContainerBagInterface.md

ContainerBagInterface

• if some service needs access to lots of parameters, instead of injecting each of them individually, you can inject all the application parameters at once by type-hinting any of its constructor arguments with the ContainerBagInterface

    // src/Service/MessageGenerator.php
    namespace App\Service;
    
    // ...
    
    use Symfony\Component\DependencyInjection\ParameterBag\ContainerBagInterface;
    
    class MessageGenerator
    {
        private $params;
    
        public function __construct(ContainerBagInterface $params)
        {
            $this->params = $params;
        }
    
        public function someMethod()
        {
            // get any container parameter from $this->params, which stores all of them
            $sender = $this->params->get('mailer_sender');
            // ...
    		$this->params->all();
        }
    }