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Package cache
Short Description Simple cache classes
License MIT
Homepage https://github.com/Vectorface/cache
Informations about the package cache
Cache
This is a simple cache library. It exposes several caching mechanisms (with different semantics), along with support for adapting to a PSR-16 compatible interface, and atomic counters. Nothing fancy.
Interface
The cache interface exposes get and set methods, which do exactly what you'd expect from a cache:
The interface supports optional time-to-live (expiry) where supported by the underlying cache type. The interface also provides delete
, clean
, and flush
methods to delete one entry, all expired entries, and all entries (respectively).
Available Implementations
APCCache
: APC or APCu.MCCache
: MemcacheRedisCache
: Redis, using either the phpredis extension or the php-redis-client libraryNullCache
: A blackhole for your dataPHPCache
: Stores values in a local variable, for one script execution only.SQLCache
: Values stored in an SQL table, accessed via PDO.TempFileCache
: Store values in temporary files. Does not support atomic counting.TieredCache
: Layer any of the above caches on top of each other to form a hybrid cache. Does not support atomic counting.
Real-World Use
Why would you want to use this? It makes it almost trivial to switch your underlying cache implementation without any code changes. This can be especially useful for testing.
Atomic Counters
A common use of caches are to implement atomic counting, i.e. incrementing or decrementing by some amount. Atomicity is important for reliability in distributed environments to avoid race conditions.
Not all cache implementations in this library support atomic counting, because it either isn't possible or doesn't make sense in that context.
Tiered Caching
Another particularly useful feature is the ability to stack caches. You can put fast caches in front of successively slower caches, presumably where the fast caches will have less storage and evict items used less often.
PSR-16 Support
If you need interoperability with other tooling that support PSR-16 SimpleCache, you may use the SimpleCacheAdapter
class which can wrap any of the cache implementations in this library.
All versions of cache with dependencies
psr/log Version ^1.0 || ^2.0 || ^3.0
psr/simple-cache Version ^1.0
cheprasov/php-redis-client Version ^1.10