symfony/cache

Features

• Caching Interfaces - Provides a full implementation of standardized PHP-FIG caching interfaces (PSR-6 and PSR-16) for library interoperability.
• Distributed Caching - Manages shared state across multiple servers using adapters for distributed databases and filesystems.
• Cache Pool Organization - Organizes cached key-value pairs into logical repositories and namespaces to provide a structured data storage system.
• Multi-Backend Storage Management - Implements a unified API to coordinate and manage cached data across diverse storage engines like memory, filesystems, and distributed databases.
• Cache Pool Management - Provides a system to organize cached information into logical repositories of key-value pairs.
• Storage Backend Adapters - Provides standardized interfaces to swap between different cache storage backends like memory, filesystems, and distributed databases.
• PSR-16 Implementations - Implements the PSR-16 Simple Cache standard for lightweight key-value storage in PHP applications.
• PSR Standard Implementations - Provides a comprehensive implementation of PHP Standard Recommendations (PSR) for caching data interoperability.
• Application Performance Optimization - Reduces system load and response times by caching the results of expensive computations in fast-access storage.
• Cache Avalanche Prevention - Prevents systemic collapse and CPU spikes by protecting backend databases from mass simultaneous cache expiration.
• Stampede Mitigation - Mitigates cache stampedes by coordinating concurrent requests during cache misses to prevent redundant backend load.
• Stampede Protection - Protects high-traffic systems from CPU spikes during cache expiration using locking and probabilistic early expiration.
• Cache - Provides tools to translate complex object states into storable formats with optional encryption and compression for efficient caching.
• Callback-Based Retrieval - Retrieves a cached item by key or executes a callback to compute and store the value if it is missing.
• Probabilistic Early Expiration - Avoids cache stampedes by randomly triggering value recomputation before the actual expiration time based on a probability formula.
• Cache Namespaces - Implements logical grouping of cache entries using key prefixes to isolate data and manage bulk invalidations.
• Cache Miss Locking - Prevents multiple processes from recomputing the same expired value by locking concurrent requests during the cache miss period.
• Object Serialization - Translates complex PHP objects into storable formats with support for optional encryption and compression.
• Serialization Pipelines - Ships a modular serialization pipeline to transform complex objects into storable strings with optional encryption and compression.

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