Memcached::decrement

(PECL memcached >= 0.1.0)

Memcached::decrement — Decrement numeric item's value

Açıklama

public int Memcached::decrement ( string $key [, int $offset = 1 ] )

Memcached::decrement() decrements a numeric item's value by the specified offset. If the item's value is not numeric, it is treated as if the value were 0. If the operation would decrease the value below 0, the new value will be 0. Memcached::decrement() will fail if the item does not exist.

Değiştirgeler

key: The key of the item to decrement.
offset: The amount by which to decrement the item's value.

Dönen Değerler

Returns item's new value on success başarısızlık durumunda FALSE döner. The Memcached::getResultCode() will return Memcached::RES_NOTFOUND if the key does not exist.

Örnekler

Örnek 1 Memcached::decrement() example


<?php
$m = new Memcached();
$m->addServer('localhost', 11211);

$m->set('counter', 5);
$m->decrement('counter');
var_dump($m->get('counter'));

$m->decrement('counter', 10);
var_dump($m->get('counter'));
?>

Yukarıdaki örneğin çıktısı:

int(4)
int(0)

Ayrıca Bakınız

Memcached::increment() - Increment numeric item's value

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