Performance · medium

24. Caching

Speeding up repeated reads.

The Cache facade provides a unified API over drivers like Redis, Memcached, and the file/database cache. Cache::remember('key', $ttl, fn() => expensiveQuery()) caches a value only if it isn't already cached. Cache tags (on supporting drivers) allow grouping and bulk-invalidating related cache entries.

Check your understanding

1. What does Cache::remember() do?
Always re-runs the closureReturns the cached value or stores the closure's result if missingDeletes old cache entriesOnly works with Redis
2. Which drivers support cache tags?
All drivers equallyOnly drivers like Redis and MemcachedOnly the file driverNone