PHP 程序有问题。访问路径多个/ 符号网站 图片显示不出来

http://www.abc.com//uploadfiles/images PHP 程序有问题。访问路径多个/ 符号网站 图片显示不出来麻烦有谁知道的。谢谢
PHP.网站打开路径多个/ 这是PHP程序<?php
  session_start();
  define('ROOT_PATH',str_replace('\\includes','\\',dirname(__FILE__)));
  require_once(ROOT_PATH.'/data/config.php');
  require_once(ROOT_PATH.'/includes/cls_mysql.php');
  require_once(ROOT_PATH.'/includes/common.php');
  require_once(ROOT_PATH.'/includes/libs/Smarty.class.php');
  require_once(ROOT_PATH."/includes/lib_info.php");
  
  global $db,$tb,$CFG,$smarty;
  
  $db=@new cls_mysql($db_host,$db_user,$db_pass,$db_name,$db_chart);
  $db->connect();  $tb=@new xtable($db_phix);
  $CFG = GET_CFG();
   
  $smarty=@new Smarty;
  $smarty->template_dir =ROOT_PATH."/themes/";
  $smarty->compile_dir  =ROOT_PATH."/template/temp/";
  $smarty->cache_dir  =ROOT_PATH."/template/cache_dir/";
  
  //缃戠珯鍚岖О
  $smarty->assign('sitetitle',$CFG['sitetitle']);
  $smarty->assign('siteurl',$CFG['siteurl']);
  $smarty->assign('sitekey',$CFG['sitekey']);
  $smarty->assign('sitedesc',$CFG['sitedesc']);
  $smarty->assign('notice',$CFG['notice']);
  $smarty->assign('copyright',$CFG['copyright']);
  if(isset($_SESSION['username']))
  {
    $smarty->assign('userinfo',$_SESSION['username']);
 }
  
  $lx_info=get_info('鑱旗郴鏂瑰纺');
  
  $smarty->assign('lx_body',$lx_info['body']);?>http://www.abc.com//uploadfiles/images就像这样。多个/ 符号 图片显示不出来麻烦有谁知道的。谢谢（2003+IIS+MYSQL+PHP）