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apcu_dec

(PECL apcu >= 4.0.0)

apcu_decDecrease a stored number

Açıklama

apcu_dec ( string $key [, int $step = 1 [, bool &$success [, int $ttl = 0 ]]] ) : int

Decreases a stored integer value.

Değiştirgeler

key

The key of the value being decreased.

step

The step, or value to decrease.

success

Optionally pass the success or fail boolean value to this referenced variable.

ttl

TTL to use if the operation inserts a new value (rather than decrementing an existing one).

Dönen Değerler

Returns the current value of key's value on success, başarısızlık durumunda FALSE döner

Sürüm Bilgisi

Sürüm: Açıklama
5.1.12 The ttl parameter has been added.

Örnekler

Örnek 1 apcu_dec() example

<?php
echo "Let's do something with success"PHP_EOL;

apcu_store('anumber'42);

echo 
apcu_fetch('anumber'), PHP_EOL;

echo 
apcu_dec('anumber'), PHP_EOL;
echo 
apcu_dec('anumber'10), PHP_EOL;
echo 
apcu_dec('anumber'10$success), PHP_EOL;

var_dump($success);

echo 
"Now, let's fail"PHP_EOLPHP_EOL;

apcu_store('astring''foo');

$ret apcu_dec('astring'1$fail);

var_dump($ret);
var_dump($fail);
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

Let's do something with success
42
41
31
21
bool(true)
Now, let's fail

bool(false)
bool(false)

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