LifeType 中文開發論壇

我想写一个个人博客的统计插件，请提供说明
我试验您写的today的例子并没有实验成功
请具体说明一下编写我这类插件程序的实现方式

<?php
  include_once( PLOG_CLASS_PATH."class/plugin/pluginbase.class.php" );
  include_once( PLOG_CLASS_PATH."class/plugin/pluginmanager.class.php" );
  include_once( PLOG_CLASS_PATH."class/data/timestamp.class.php" );
  class PluginToday extends PluginBase
  {
   function PluginToday()
   {
     $this->PluginBase();
     $this->desc = "Very simple plugin that will tell today's date.";
     $this->author = "The pLog team";
   }
   function show()
   {
       $t = new Timestamp();

       $todayDate = $t->getDay()."/".$t->getMonth()."/".$t->getYear();

       return $todayDate;
   }
  }
  PluginManager::registerPlugin( "today", "PluginToday" );
?>

我将这样的程序码存在today.class.php,放在plugin目录下,在后台管理中去没有办法发现这个插件

前台main模板中添加{$today->show()}又会报这个错误
Fatal error: Call to a member function show() on a non-object in D:\JOB\baby\root\tmp\1\%%AB^AB5^AB5C16A9%%main.template.php on line 27