Retrieves cached information from data store
The server's statistics array has the following values:
Number of keys that have been requested and found present.
Number of items that have been requested and not found.
Time that the server is running.
Memory used by this server to store items.
Memory allowed to use for storage.
@since 2.2
Overrides Cache::getStats
public function getStats() {
return $this
->doGetStats();
}