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    pcntl_sigprocmask

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    pcntl_sigprocmask — Sets and retrieves blocked signals

    Descrizione

    pcntl_sigprocmask(int $mode, array $signals, array &$old_signals = null): bool

    The pcntl_sigprocmask() function adds, removes or sets blocked signals, depending on the mode parameter.

    Elenco dei parametri

    mode

    Sets the behavior of pcntl_sigprocmask(). Possible values:

    • SIG_BLOCK: Add the signals to the currently blocked signals.
    • SIG_UNBLOCK: Remove the signals from the currently blocked signals.
    • SIG_SETMASK: Replace the currently blocked signals by the given list of signals.

    signals

    List of signals.

    old_signals

    The old_signals parameter is set to an array containing the list of the previously blocked signals.

    Valori restituiti

    Restituisce true in caso di successo, false in caso di fallimento.

    Esempi

    Example #1 pcntl_sigprocmask() example

    <?php
    pcntl_sigprocmask    (SIG_BLOCK, array(SIGHUP));
    $oldset = array();
    pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset);
    ?>

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