why printf() function don't go work? Post: 302273535

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LEARN ABOUT PHP

pcntl_signal_dispatch

PCNTL_SIGNAL_DISPATCH(3)						 1						  PCNTL_SIGNAL_DISPATCH(3)

pcntl_signal_dispatch - Calls signal handlers for pending signals

SYNOPSIS

       bool pcntl_signal_dispatch (void  )

DESCRIPTION

	The pcntl_signal_dispatch(3) function calls the signal handlers installed by pcntl_signal(3) for each pending signal.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      pcntl_signal_dispatch(3) example

	      <?php
	      echo "Installing signal handler...
";
	      pcntl_signal(SIGHUP,  function($signo) {
		   echo "signal handler called
";
	      });

	      echo "Generating signal SIGHUP to self...
";
	      posix_kill(posix_getpid(), SIGHUP);

	      echo "Dispatching...
";
	      pcntl_signal_dispatch();

	      echo "Done
";

	      ?>

	      The above example will output something similar to:

	      Installing signal handler...
	      Generating signal SIGHUP to self...
	      Dispatching...
	      signal handler called
	      Done

SEE ALSO

       pcntl_signal(3), pcntl_sigprocmask(3), pcntl_sigwaitinfo(3), pcntl_sigtimedwait(3).

PHP Documentation Group 												  PCNTL_SIGNAL_DISPATCH(3)