(PECL memcached >= 0.1.0)
Memcached::getDelayedByKey — Request multiple items from a specific server
Memcached::getDelayedByKey() is functionally equivalent to Memcached::getDelayed, except that the free-form server_key can be used to map the keys to a specific server.
A chave identificando o servidor aonde guardar o valor.
Array of keys to request.
Whether to request CAS token values also.
The result callback or NULL.
Retorna TRUE em caso de sucesso ou FALSE em falhas. Use Memcached::getResultCode se necessário.