$output = popen("killall Xvnc", "r");
	$output0 = popen("su apache", "r");
	$output1 = popen("vncserver", "r");

$handle = popen('killall Xvnc 2>&1', 'r');
	echo "'$handle'; " . gettype($handle) . "\n";
	$read = fread($handle, 2096);
	echo $read;
	pclose($handle);
	
	$handle1 = popen('su apache 2>&1', 'r');
	echo "'$handle1'; " . gettype($handle1) . "\n";
	$read = fread($handle1, 2096);
	echo $read;
	pclose($handle1);
	
	$handle2 = popen('vncserver 2>&1', 'r');
	echo "'$handle2'; " . gettype($handle2) . "\n";
	$read = fread($handle2, 2096);
	echo $read;
	pclose($handle2);