Support sliding cache

[nunodonato]

I was under the wrong impression that using Cache::remember would keep my cached content alive. Today I found out it doesn't.

Has there been any previous discussion on supporting sliding cache TTLs? This could perhaps be passed as an option to remember()?

[henzeb]

what do you mean exactly with "sliding cache"? Did you mean something like the flexible method? https://laravel.com/docs/12.x/cache#swr

Or simply rememberForever?

[nunodonato]

Thanks, I wasn't aware of flexible. Close, but not quite the same, I think.
The idea behind the sliding cache ttl is that everytime the cache is hit, the TTL slides forward.
Example: a cache key is set with TTL 1000. If at 900 seconds the cache is hit, the TTL is reset to another 1000 seconds. This avoids recalculation for heavy processes. Its useful for scenarios where the cache never goes stale, but its only worth keeping if its being needed. Once it stops getting hits, then it can safely be forgotten.

flexible is close to this, but it still forces the recalculation if it is in the stale period.