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pcntl_sigprocmask

(PHP 5 >= 5.3.0)

pcntl_sigprocmask — Sets and retrieves blocked signals

bool pcntl_sigprocmask ( int $how , array $set [, array &$oldset ] )

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

how -

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.

set -

List of signals.

oldset -

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

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

pcntl_sigprocmask(SIG_BLOCK, array(SIGHUP));
$oldset = array();
pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset);