(PHP 5 >= 5.3.0)
pcntl_sigprocmask — Sets and retrieves blocked signals
The pcntl_sigprocmask() function adds, removes or sets blocked signals, depending on the how parameter.
Sets the behavior of pcntl_sigprocmask(). Possible values:
List of signals.
The oldset parameter is set to an array containing the list of the previously blocked signals.
Întoarce valoarea TRUE în cazul succesului sau FALSE în cazul eșecului.
Example #1 pcntl_sigprocmask() example
<?php
pcntl_sigprocmask(SIG_BLOCK, array(SIGHUP));
$oldset = array();
pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset);
?>