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Memcached::__construct> <Memcached::cas
[edit] Last updated: Sat, 25 May 2013

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Memcached::casByKey

(PECL memcached >= 0.1.0)

Memcached::casByKeyCompare and swap an item on a specific server

Descrição

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.

Parâmetros

cas_token

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

server_key

A chave identificando o servidor aonde guardar o valor.

key

A chave sobre a qual guardar o valor.

value

O valor para guardar.

expiration

O tempo de expiração, padrão é 0. Veja Tempos de Expiração para maiores informações.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha. 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.

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