Test calling different values of index.php?nested=1476
Result: Values above 1475 results in Apache not sending any content (no headers or content) 
Version info: PHP 5.2.3 Apache 2.0.59 On WinXP
test: '.$count."\n\r";
	if($count < $_GET['nested']) {test();} else {die;}
	}
	

test();

	?>