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<?php
namespace Smarty\FunctionHandler;
use Smarty\Template;
/**
* Smarty {counter} function plugin
* Type: function
* Name: counter
* Purpose: print out a counter value
*
* @param array $params parameters
* @param Template $template template object
*
* @return string|null
*
* @author Monte Ohrt <monte at ohrt dot com>
*/
class Counter extends Base {
private $counters = [];
public function handle($params, Template $template) {
$name = (isset($params['name'])) ? $params['name'] : 'default';
if (!isset($this->counters[$name])) {
$this->counters[$name] = ['start' => 1, 'skip' => 1, 'direction' => 'up', 'count' => 1];
}
$counter =& $this->counters[$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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