PHP Conference Nagoya 2025

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|false

Decreases a stored integer value.

Bağımsız Değişkenler

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

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_EOL, PHP_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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