Memcached::decrementByKey

(PECL memcached >= 2.0.0)

Memcached::decrementByKey — Decrement numeric item's value, stored on a specific server

Descrierea

public int Memcached::decrementByKey ( string $server_key , string $key [, int $offset = 1 [, int $initial_value = 0 [, int $expiry = 0 ]]] )

Memcached::decrementByKey() decrements a numeric item's value by the specified offset. If the item's value is not numeric, an error will result. If the operation would decrease the value below 0, the new value will be 0. Memcached::decrementByKey() will set the item to the initial_value parameter if the key doesn't exist.

Parametri

server_key: Cheia ce identifică server-ul pe care se stochează valoarea.
key: The key of the item to decrement.
offset: The amount by which to decrement the item's value.
initial_value: The value to set the item to if it doesn't currently exist.
expiry: The expiry time to set on the item.

Valorile întoarse

Returns item's new value on success sau FALSE în cazul eșecului.

Vedeți de asemenea

Memcached::decrement() - Decrement numeric item's value
Memcached::increment() - Increment numeric item's value
Memcached::incrementByKey() - Increment numeric item's value, stored on a specific server