<?php
/**
* Smarty plugin
*
* @package Smarty
* @subpackage PluginsFunction
*/
/**
* Smarty {counter} function plugin
* Type: function
* Name: counter
* 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;
}
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