apcu_store

    (PECL apcu >= 4.0.0)

    apcu_store — Cache a variable in the data store

    Descrizione

    apcu_store(string $key, mixed $var, int $ttl = 0): bool
    apcu_store(array $values, mixed $unused = NULL, int $ttl = 0): array

    Cache a variable in the data store.

    Nota: Unlike many other mechanisms in PHP, variables stored using apcu_store() will persist between requests (until the value is removed from the cache).

    Elenco dei parametri

    key

    Store the variable using this name. keys are cache-unique, so storing a second value with the same key will overwrite the original value.

    var

    The variable to store

    ttl

    Time To Live; store var in the cache for ttl seconds. After the ttl has passed, the stored variable will be expunged from the cache (on the next request). If no ttl is supplied (or if the ttl is 0), the value will persist until it is removed from the cache manually, or otherwise fails to exist in the cache (clear, restart, etc.).

    values

    Names in key, variables in value.

    Valori restituiti

    Restituisce true in caso di successo, false in caso di fallimento. Second syntax returns array with error keys.

    Esempi

    Example #1 A apcu_store() example

    <?php
    $bar     = 'BAR';
    apcu_store('foo', $bar);
    var_dump(apcu_fetch('foo'));
    ?>

    Il precedente esempio visualizzerà:

    string(3) "BAR"

    Vedere anche:

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    User Contributed Notes 1 note

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    info at qmegas dot info
    4 years ago
    Be careful when updating same key with ttl set during same request. For example:<?phpfor ($i = 0; $i < 20; $i++) {    apcu_store('test', $i, 10);    sleep(1);}?>After 10 seconds the key will become not available and won't be updated. Tested on Windows and Linux platforms. Not sure if it's a bug or undocumented behavior.
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