<?php
/**
 * patTemplate modfifier Reverse
 *
 * $Id$
 *
 * @package patTemplate
 * @package Modifiers
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */

/**
 * patTemplate modifier Reverse
 * 
 * Reverse words using custom separator
 *
 * @package patTemplate
 * @package Modifiers
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */
class patTemplate_Modifier_Reverse extends patTemplate_Modifier
{
   /**
    * modify the value
    *
    * @param string value
    * @param array $params
    * @return string modified value
    */
    public function modify( $value, $params = array() )
    {
        if (!is_array($params)) {
            $params =   array();
        }
        $default    =   array(
                        'separator' =>  '.',
                        'fill'      =>  '.'
                        );
        $params =   array_merge($default, $params);

        // nothing to do
        if (empty($params['separator'])) {
            return $value;
        }

        $value  =   explode($params['separator'], $value);
        $value  =   array_reverse($value);
        $value  =   implode($params['fill'], $value);

        return $value;
    }

}