(PECL memcached >= 0.1.0)
Memcached::appendByKey — Append data to an existing item on a specific server
Memcached::appendByKey() is functionally equivalent to Memcached::append, except that the free-form server_key can be used to map the key to a specific server.
The key identifying the server to store the value on.
The key under which to store the value.
The string to append.
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки. The Memcached::getResultCode will return Memcached::RES_NOTSTORED if the key does not exist.