pcntl_alarm

(PHP 4 >= 4.3.0, PHP 5)

pcntl_alarm -- Set an alarm clock for delivery of a signal

Description

int pcntl_alarm ( int seconds )

The pcntl_alarm() function creates a timer that will send a SIGALRM signal to the process after seconds seconds. If seconds is zero, no new alarm is created. Any call to pcntl_alarm() will cancel any previously set alarm.

pcntl_alarm() will return the time in seconds that any previously scheduled alarm had remaining before it was to be delivered, or 0 if there was no previously scheduled alarm.

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j at ukr-info dot net
20-Oct-2005 07:51


<?php

    declare(ticks = 1);



    function signal_handler($signal) {

        print "Caught SIGALRM\n";

        pcntl_alarm(5);

    }



    pcntl_signal(SIGALRM, "signal_handler", true);

    pcntl_alarm(5);



    for(;;) {

    }



?>

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