(PECL memcached >= 0.1.0)
Memcached::deleteByKey — Delete an item from a specific server
Memcached::deleteByKey() is functionally equivalent to Memcached::delete(), except that the free-form server_key can be used to map the key to a specific server.
La clave que identifica el servidor en donde guardar el valor.
The key to be deleted.
The amount of time the server will wait to delete the item.
Devuelve TRUE en caso de éxito o FALSE en caso de error. The Memcached::getResultCode() will return Memcached::RES_NOTFOUND if the key does not exist.