Description:
------------
1. If i use it - sleep function dont work.
2. It if use it in class - its not work.



Test script:
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		declare(ticks = 1);
		pcntl_signal(SIGCHLD, SIG_IGN);
		for($i=0;$i<300;$i++){
				$pid = pcntl_fork();
					if ($pid == -1) {
					     die('could not fork');
					} else if ($pid) {
					     	usleep(2500);
					} else {
					     	echo 'Child'.$i."\r\n";
					     	sleep(mt_rand(1,3));

					     	exit;
					}
		}
		echo 'Test123';
		sleep(60);
		echo 'Test456';

Expected result:
----------------
This script work withouts sleep

Actual result:
--------------
Sleep need work.