NanoAgent PHP Library Adds Persistent Chat Memory with Swappable Storage Drivers

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NanoAgent, a PHP agent library, has introduced a built-in memory system that allows chatbot conversation history to persist across server restarts and browser sessions. Developers can attach a memory driver to an agent using a single setMemory() call, which automatically loads prior history and saves it after every chat interaction. The library offers three drivers: ArrayMemory for in-process-only storage, FileMemory for single-user file-based persistence, and PdoMemory for SQL-backed multi-user production environments supporting SQLite, MySQL, and PostgreSQL. FileMemory uses hashed session IDs and atomic file writes to prevent directory traversal and data corruption from crashed requests. Resetting a session's history is handled through a clearHistory() method that removes both in-memory and stored data in one step.

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