title Dependency Injection Back to index Dependency Injection Service container Service Container - symfony.com Built-in services Built-in Symfony Service Tags - symfony.com Configuration parameters Configuration Parameters - symfony.com Services registration (only with YAML and PHP attributes) Creating/Configuring Services in the Container - symfony.com Service decoration How to Decorate Services - symfony.com Tags How to Work with Service Tags - symfony.com Semantic configuration Factories Using a Factory to Create Services - symfony.com Compiler passes How to Work with Compiler Passes in Bundles - symfony.com Services autowiring Defining Services Dependencies Automatically (Autowiring) Version >= 3.3 - symfony.com Service locators Service Subscribers & Locators - symfony.com Defining a Service Locator - symfony.com