symfony/config
Config
This project is a PHP configuration management library used to define, load, and validate application settings. It functions as a configuration merging engine and a schema validator, ensuring that software behaves consistently across different installations.
The library acts as a multi-format configuration loader that converts settings from various file types, such as YAML and XML, into a standardized internal format. It allows for the establishment of formal configuration schemas with validation rules and default values to prevent runtime errors caused by invalid inputs.
The system supports hierarchical configuration merging, which combines settings from multiple priority-ordered sources into a single unified set. This process includes recursive array merging and tree-based normalization to resolve conflicting values and apply environment-specific overrides.
Features
- Application Settings Management - Provides a comprehensive system for defining, validating, and persisting application-wide configuration settings.
- Typed Configuration Schemas - Enforces strict data types and structures on configuration inputs to prevent runtime errors.
- Schema Validators - Validates application settings against formal schemas to ensure structural correctness and data type integrity.
- Configuration Merging Engines - Functions as an engine for combining global and local configuration settings into a unified set.
- Configuration Schemas - Allows the definition of formal configuration schemas specifying required structures, types, and constraints.
- Configuration Merging - Combines settings from multiple files and origins into a single unified registry to resolve conflicts.
- Multi-Format Configuration Loading - Supports loading application settings from diverse formats including YAML and XML into a standardized format.
- Configuration Management Libraries - Provides a dedicated PHP library for defining, loading, and validating application settings.
- Hierarchical Configuration Overrides - Implements a priority-based hierarchy for applying configuration settings from global to specific levels.
- Configuration Source Priority - Implements a priority-based loading system where environment-specific settings override global defaults.
- Recursive Configuration Merging - Deeply merges multiple configuration sources into a single resolved settings tree to handle complex value overrides.
- Multi-Format Config Parsers - Parses multiple configuration formats such as YAML and XML, merging them into a single immutable tree.
- Unified Internal Representations - Provides a unified internal representation to map multiple configuration serialization formats for consistent processing.
- Configuration Value Resolvers - Provides mechanisms for resolving and retrieving the active configuration values to drive application logic.
- Configuration Normalization - Normalizes raw input data from various sources into a consistent final configuration state.
Star history
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