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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.

Пример #1 pcntl_sigprocmask() example


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