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Informations about the package file-cache
Solo FileCache
A simple, lightweight, file-based cache implementation for PHP that adheres to the PSR-16 Simple Cache standard. Solo\FileCache provides a straightforward way to cache data using the filesystem with TTL (time-to-live) support, making it ideal for small to medium-sized projects where external dependencies like Redis or Memcached are not desired.
Features
- Fully compliant with PSR-16 Simple Cache.
- File-based storage with no external dependencies.
- Supports TTL for cache entries (via seconds or
DateInterval). - Thread-safe operations using file locking (
flock). - Validates cache keys per PSR-16 requirements.
- Handles filesystem errors gracefully with meaningful exceptions.
Installation
Install the package via Composer:
Requirements
- PHP >= 8.1
- Write access to the specified cache directory
Usage
Basic Example
Working with Multiple Items
Using DateInterval for TTL
Configuration
The FileCache constructor accepts a single parameter for the cache directory:
If the directory does not exist, it will be created automatically with 0755 permissions. Ensure the PHP process has write access to this directory, or a RuntimeException will be thrown.
Key Validation
Cache keys must conform to PSR-16 requirements (alphanumeric characters, underscores, and dots only). Invalid keys will throw a Psr\SimpleCache\InvalidArgumentException.
Error Handling
The class throws exceptions for critical errors:
RuntimeExceptionif the cache directory cannot be created or is not writable.Psr\SimpleCache\InvalidArgumentExceptionfor invalid cache keys.
Limitations
- Suitable for low to medium load applications due to filesystem-based storage.
- Not optimized for high-concurrency scenarios or large-scale caching.
- Uses PHP's
serializefor data storage, so avoid caching untrusted input to prevent potential security issues.
For high-performance or distributed systems, consider using Redis, Memcached, or other PSR-16-compatible caching solutions.
License
This package is licensed under the MIT License.
Contributing
Contributions are welcome! Please submit issues or pull requests on GitHub.
Acknowledgments
Built with simplicity and reliability in mind, inspired by the PSR-16 standard and the needs of lightweight PHP applications.
