Caching
The CachedDereferencer will cache any loaded schemas and the final dereferenced schema. This can make loading local schemas a little bit faster and loading remote schemas significantly faster.
Usage
The CachedDereferencer accepts any cache that implements the PSR-16 Simple Cache Interface. The following example uses sabre/cache.
$cache = new \Sabre\Cache\Apcu();
$dereferencer = new CachedDereferencer(new Dereferencer(), $cache);
$schema = $dereferencer->dereference('http://json-schema.org/draft-04/schema');