Memcached::casByKey

(PECL memcached >= 0.1.0)

Memcached::casByKey — Compare and swap an item on a specific server

Description

public bool Memcached::casByKey ( float $cas_token , string $server_key , string $key , mixed $value [, int $expiration ] )

Memcached::casByKey() is functionally equivalent to Memcached::cas(), except that the free-form server_key can be used to map the key to a specific server. This is useful if you need to keep a bunch of related keys on a certain server.

Parameters

cas_token

Unique value associated with the existing item. Generated by memcache.

server_key

The key identifying the server to store the value on.

key

The key under which to store the value.

value

The value to store.

expiration

The expiration time, defaults to 0. See Expiration Times for more info.

Return Values

Returns TRUE on success or FALSE on failure. The Memcached::getResultCode() will return Memcached::RES_DATA_EXISTS if the item you are trying to store has been modified since you last fetched it.

See Also

• Memcached::cas() - Compare and swap an item