Untitled

<!DOCTYPE html>
<html>
<head>
	<title>PHP Chapter 1: Binary Christmas Tree</title>
</head>
<body>
<?php
	xmas(3);
	function xmas($num) {
		$row = $num;
		$c = 1;
		for($row;$row>0;$row--){
			echo str_repeat('&nbsp', $row);
			for($i=$row;$i<=$num;$i++) {
				echo ($c % 2) . ' ';
				$c++;
			}
			echo "<br/>";
		}
	}
?>
</body>
</html>