phpredis is a C-based native extension that bridges PHP applications with Redis servers for high-performance data storage and retrieval. It serves as an interface for manipulating strings, hashes, lists, sets, and sorted sets while providing a direct path for executing Redis commands and server-side scripts.
The extension provides comprehensive support for distributed environments and high availability. It interfaces with Redis Cluster to distribute data across multiple nodes using hash slots and manages Redis Sentinel for service discovery and automatic failover. It also enables shared state across application servers by storing PHP session data in a remote Redis backend.
Broad capabilities cover low-latency operations through command pipelining and binary serialization, as well as real-time messaging via pub-sub and streams. The toolset includes security features such as TLS encryption and access control lists, along with utilities for geospatial queries and server performance analysis.
