function.counter.php
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function.counter.php
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	<?php
	/**
	* Smarty plugin
	* @package Smarty
	* @subpackage PluginsFunction
	*/

	/**
	* Smarty {counter} function plugin
	*
	* Type: function<br>
	* Name: counter<br>
	* Purpose: print out a counter value
	*
	* @author Monte Ohrt <monte at ohrt dot com>
	* @link http://www.smarty.net/manual/en/language.function.counter.php {counter}
	* (Smarty online manual)
	* @param array $params parameters
	* @param Smarty_Internal_Template $template template object
	* @return string\|null
	*/
	function smarty_function_counter($params, $template)
	{
	static $counters = array();

	$name = (isset($params['name'])) ? $params['name'] : 'default';
	if (!isset($counters[$name])) {
	$counters[$name] = array(
	'start'=>1,
	'skip'=>1,
	'direction'=>'up',
	'count'=>1
	);
	}
	$counter =& $counters[$name];

	if (isset($params['start'])) {
	$counter['start'] = $counter['count'] = (int)$params['start'];
	}

	if (!empty($params['assign'])) {
	$counter['assign'] = $params['assign'];
	}

	if (isset($counter['assign'])) {
	$template->assign($counter['assign'], $counter['count']);
	}

	if (isset($params['print'])) {
	$print = (bool)$params['print'];
	} else {
	$print = empty($counter['assign']);
	}

	if ($print) {
	$retval = $counter['count'];
	} else {
	$retval = null;
	}

	if (isset($params['skip'])) {
	$counter['skip'] = $params['skip'];
	}

	if (isset($params['direction'])) {
	$counter['direction'] = $params['direction'];
	}

	if ($counter['direction'] == "down")
	$counter['count'] -= $counter['skip'];
	else
	$counter['count'] += $counter['skip'];

	return $retval;

	}

	?>