Fwd: [PHP] How could I mix popen() and pcntl_alarm() function ?

Hi, my PHP version is PHP 5.2.4-2. I was according to the example in page ( pcntl_alarm() function doc page ) http://www.php.net/manual/en/function.pcntl-alarm.php <http://www.php.net/manual/en/function.pcntl-alarm.php>In that page, the register_tick_function() does not register any function, and it's work on that example in above URI. In my try and error experiment, I think the SIGALRM does not trigger because we called popen() function. Could anyone help ? Thanks - Arron On Wed, Jun 16, 2010 at 2:38 AM, Jim Lucas <lists@cmsws.com> wrote: > Chian Hsieh wrote: > > Hi, > > > > I want to use tail command to tail the file by popen and trigger the > > function signal() by every 3 secs. > > > > Here is my example code: > > > > declare(ticks = 1); > > // Unreachable function > > function signal($signal) { > > echo "SIGALRM\n"; > > pcntl_alarm(3); > > } > > > > pcntl_signal(SIGALRM, "signal"); > > pcntl_alarm(3); > > $fpcmd = popen("tail -f my.log", 'r'); > > while (!feof($fpcmd)) { > > $line = fgets($fpcmd); > > echo $line; > > } > > > > > > Unfortunately, the signal() function is never reached. > > Why ? Could someone help me ? > > > > Thanks for your help. > > > > - Arron > > > > What version of PHP are you running? > > Read: http://php.net/declare > > I found this at the bottom of the declare page. > > [quote] > The encoding declare value is ignored in PHP 5.3 unless php is compiled > with > --enable-zend-multibyte. > [/quote] > > Also, doesn't look like you are using the "register_tick_function()" > function. > > Is it required? Not sure, but their examples show its usage. > > -- > Jim Lucas > > A: Maybe because some people are too annoyed by top-posting. > Q: Why do I not get an answer to my question(s)? > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > -- - Chi-An Hsieh -- - Chi-An Hsieh