PSR-16 Simple Cache implementation with multiple storage backends.

• PSR-16 Simple Cache Interface - Standard get/set/delete/clear/has/getMultiple/setMultiple/deleteMultiple
• Age Filtering - Per-retrieval lifetime checks for some backends (SQL, File, Session, Hashtable, MongoDB)
• 9 Storage Backends - Memory, File, SQL, Memcache, Redis, APCu, Session, Hashtable, MongoDB
• Constructor Injection - Modern dependency injection with PSR-3 logger support
• Type Safety - PHP 8.1+ with strict types

• Changelog
• Upgrading from 3.x to 4.x

• PSR-16: Simple Cache
• Horde Project