Tree view

tree.php

<?php

$depth = 0;

echo '<ol class="tree">';
foreach ($children as $i => $child)
{
	// Get the last and next nodes
	$last = isset($children[$i-1]) ? $children[$i-1] : $children[0];
	$next = isset($children[$i+1]) ? $children[$i+1] : $children[0];

	if ($child->lvl > $last->lvl)
	{
		// Increasing depth, start a new list
		echo '<ol class="d', $child->lvl, '">';
	}

	// Start the line
	echo "\n", str_repeat("\t", $child->lvl + 1), "<li>";

	// Create a link to the user details
	$line = html::anchor('users/view/details/'.$child->id, $child->name ? $child->name : $child->username);

	if ($child->lvl < 1)
	{
		// This user is the start of a network
		$line = "<strong>{$line}</strong>";
	}

	// Display the affiliates name and current credit
	echo $line;

	if ($next->lvl <= $child->lvl)
	{
		// Next node has the same depth or less, end this line
		echo "</li>";
	}

	if ($next->lvl < $child->lvl)
	{
		// Calculate the amount of change
		$change = $child->lvl - $next->lvl;

		while ($change > 0)
		{
			// Decreasing depth
			$change--;
			echo "\n", str_repeat("\t", $child->lvl + $change), "</ol></li>";
		}
	}
}
echo "\n</ol>";