Memcached::decrement
Memcached::delete
Memcached
PHP Manual

# Memcached::decrementByKey

(PECL memcached >= 2.0.0)

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

### Descrição

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.

### Parâmetros

`server_key`

  A chave identificando o servidor aonde guardar o valor.

`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.

### Valor Retornado

Returns item's new value on success ou `FALSE` em caso de falha.

### Veja Também

- 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

Memcached::decrement
Memcached::delete
Memcached
PHP Manual