breadcrumb.php

每个RFC 3261信息头有一个相应的存取标识. 但是,许多信息头拥有同样的形式。 例如。To和From的信息头都是由显示名和一个URI组成。 To和From信息头用来管理与处理NameAddr实例的

<?php
/*
  $Id: breadcrumb.php,v 1.3 2003/02/11 00:04:50 hpdl Exp $

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2003 osCommerce

  Released under the GNU General Public License
*/

  class breadcrumb {
    var $_trail;

    function breadcrumb() {
      $this->reset();
    }

    function reset() {
      $this->_trail = array();
    }

    function add($title, $link = '') {
      $this->_trail[] = array('title' => $title, 'link' => $link);
    }

    function trail($separator = ' - ') {
      $trail_string = '';

      for ($i=0, $n=sizeof($this->_trail); $i<$n; $i++) {
        if (isset($this->_trail[$i]['link']) && tep_not_null($this->_trail[$i]['link'])) {
          $trail_string .= '<a href="' . $this->_trail[$i]['link'] . '" class="headerNavigation">' . $this->_trail[$i]['title'] . '</a>';
        } else {
          $trail_string .= $this->_trail[$i]['title'];
        }

        if (($i+1) < $n) $trail_string .= $separator;
      }

      return $trail_string;
    }
  }
?>