Drupal-sf-dic is a Drupal 7 module that serves the purpose of bringing the Symfony 3 dependency injection container to Drupal 7 along with a limited Drupal 8 API compatibility layer.

This project has been maturing enough to fill those needs :

• Brings the Symfony 3 dependency injection container to Drupal 7 ;
• Brings a Drupal 8 forward-compatibility layer for easier module porting ;
• Brings the ability to use Symfony bundles into Drupal 7 as long as they use a limited set of Symfony features.

Read the documentation on https://drupal-sf-dic.readthedocs.io/en/latest/.