gistfile1.txt

$signalHandler = function ( $signal ) use ( $refreshWatcher, $clearWatcher ) {
	Loop::cancel( $refreshWatcher );
	Loop::cancel( $clearWatcher );
	Loop::stop();
	print "Caught {$signal}, exiting...\n";
  //exit;
};

try {
	Loop::onSignal( SIGINT, $signalHandler, "SIGINT" );
	Loop::onSignal( SIGTERM, $signalHandler, "SIGTERM" );
} catch ( \Throwable $e ) {
	echo "Err: " . $e->getMessage();
}

Loop::run();