Memcached
PHP Manual

Memcached::replace

(PECL memcached >= 0.1.0)

Memcached::replaceReplace the item under an existing key

Descrição

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.

Parâmetros

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.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em falhas. The Memcached::getResultCode will return Memcached::RES_NOTSTORED if the key does not exist.

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Memcached
PHP Manual