Symfony – How to get parameters value in Controller and Twig

In Symfony, we defined various parameters in Parameters.yml so that our application can use these in various places. Example –

parameters:
    database_host: 127.0.0.1
    database_port: null
    database_name: symfony
    database_user: root
    database_password: ''
    mailer_transport: smtp
    mailer_host: smtp.mydomain.com
    mailer_encryption: tls
    mailer_user: john
    mailer_password: ''
    secret: your-secret-key

But how can we access these values in our Controller or Twig ? Simple 🙂 using getParameter function you can easily access these.

$dataBaseName = $this->container->getParameter('database_name');

To access these parameters you have to define these in Config.yml file, under twig key with globals keyword like database_name

# Twig Configuration
twig:
    globals:
        database_name: %database_name%

using %% you can access defined values like we use $ in php for variables.

Twig template code

{{ database_name }}

Symfony version used – 2.7