function.counter.php

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<?php
/*
 * template_lite plugin
 * -------------------------------------------------------------
 * Type:     function
 * Name:     counter
 * Purpose:  print out a counter value
 * Credit:   Taken from the original Smarty
 *           http://smarty.php.net
 * -------------------------------------------------------------
 */
function tpl_function_counter($params, &$tpl)
{
	static $count = array();
	static $skipval = array();
	static $dir = array();
	static $name = "default";
	static $printval = array();
	static $assign = "";

	extract($params);

	if (!isset($name))
	{
		if(isset($id))
		{
			$name = $id;
		}
		else
		{
			$name = "default";
		}
	}

	if (isset($start))
	{
		$count[$name] = $start;
	}
	elseif (!isset($count[$name]))
	{
		$count[$name]=1;
	}

	if (!isset($print))
	{
		$printval[$name]=true;
	}
	else
	{
		$printval[$name]=$print;
	}

	if (!empty($assign))
	{
		$printval[$name] = false;
		$tpl->assign($assign, $count[$name]);
	}

	if ($printval[$name])
	{
		$retval = $count[$name];
	}
	else
	{
		$retval = null;
	}

	if (isset($skip))
	{
		$skipval[$name] = $skip;
	}
	elseif (empty($skipval[$name]))
	{
		$skipval[$name] = 1;
	}

	if (isset($direction))
	{
		$dir[$name] = $direction;
	}
	elseif (!isset($dir[$name]))
	{
		$dir[$name] = "up";
	}

	if ($dir[$name] == "down")
	{
		$count[$name] -= $skipval[$name];
	}
	else
	{
		$count[$name] += $skipval[$name];
	}

	return $retval;
}
?>