Memcached
PHP Manual

Memcached::replaceByKey

(PECL memcached >= 0.1.0)

Memcached::replaceByKey — Replace the item under an existing key on a specific server

说明

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

Memcached::replaceByKey() is functionally equivalent to Memcached::replace(), 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.

参数

server_key

此键名标识存储值的服务器。

key

用于存储值的键名。

value

存储的值

expiration

到期时间，默认为 0。 更多 信息请参见到期时间。

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE. The Memcached::getResultCode() will return Memcached::RES_NOTSTORED if the key does not exist.

参见

Memcached
PHP Manual