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- How do you handle cache invalidation in Symfony?
How do you handle cache invalidation in Symfony?
Answer: In Symfony, cache invalidation can be handled using several methods:
1. Cache Tags: Use cache tags to invalidate specific cache entries. When data changes, you can invalidate caches associated with those tags.
2. Expiration: Set expiration times for cached items. After the expiration, the cache will be considered stale and will be rebuilt automatically.
3. Cache Clear Command: Use the `cache:clear` command to clear the entire application cache when deploying new code or making significant changes.
4. Event Listeners/Subscribers: Listen for specific events (like Doctrine updates) and trigger cache invalidation when the relevant entities are modified.
5. Manual Invalidation: Programmatically invalidate cache entries using the cache service, calling methods like `delete`, `deleteMultiple`, or clear specific caches when data changes.
Choose the method based on your specific use case and architecture.
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