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    apcu_dec

    (PECL apcu >= 4.0.0)

    apcu_dec — Decrease 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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