Memcached::replace

(PECL memcached >= 0.1.0)

Replace the item under an existing key

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

Memcached::replace() is similar to Memcached::set(), but the operation fails if the key does not exist on the server.

Parameters:

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.

Returns:

Returns TRUE on success or FALSE on failure. The Memcached::getResultCode() will return Memcached::RES_NOTSTORED if the key does not exist.