(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.
server_key
The key identifying the server to store the value on or retrieve it from. Instead of hashing on the actual key for the item, we hash on the server key when deciding which memcached server to talk to. This allows related items to be grouped together on a single server for efficiency with multi operations.
key
The key under which to store the value.
value
The string to append.
Returns true
on success or false
on failure.
Returns null
when compression is on.
Returns null
and raises an E_WARNING
when
compression is enabled.