symfony/dependency-injection
Dependency Injection
This project is a PHP dependency injection container and framework designed to centralize object construction and manage class dependencies. It serves as a service container and configuration registry that automates object lifecycles and manages references between services to decouple application components from their specific dependencies.
The system handles the instantiation and wiring of objects through both constructor and setter injection. It provides a centralized registry for storing reusable parameters and service definitions, which prevents the hardcoding of settings across the application.
The framework supports loading service definitions from external files and managing complex dependency graphs through reference-based wiring. It also includes capabilities for handling missing service references and managing application configuration.
Features
- Centralized Object Construction - Standardizes how objects are created and wired together to decouple components from their specific dependencies.
- Application Configuration Management - Provides centralized management of reusable application parameters to avoid hardcoded settings.
- Service Dependency Wiring - Connects services using unique identifiers to resolve complex dependency graphs during the container build phase.
- Service Containers - Implements a service container that manages the lifecycle and resolution of application services.
- Configuration Registries - Aggregates service definitions and parameters into a single prioritized registry for the application.
- Application Parameter Configurators - Allows the definition of internal application behavior and operational parameters in a central registry.
- Configuration Parameter Injection - Provides a central registry of key-value parameters that can be injected into service definitions.
- Dependency Injection Containers - Provides a PHP-based container for managing object lifecycles and dependency resolution.
- Dependency Injection Frameworks - Implements inversion of control to automate object lifecycles and manage component dependencies.
- Dependency Injection - Decouples software components by managing the instantiation and wiring of required dependencies.
- Constructor-Based Injections - Implements dependency injection by passing required services through class constructors.
- Setter-Based Injections - Provides non-essential dependencies by calling specific setter methods after object instantiation.
- Dependency Injection Containers - Provides a system that handles the instantiation and injection of application objects to promote loose coupling.
- Configuration File Loading - Supports importing service and parameter configurations from structured external files to decouple wiring from code.
- Compiled Containers - Writes optimized PHP classes to disk to avoid runtime reflection and configuration parsing during object instantiation.
- Externalized Configurations - Separates application wiring from source code by reading service definitions from external files.
- Dependency Injection - Component for managing object dependencies.
Star history
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