spiders.txt 有何用？删掉后出问题了!

mine

spiders.txt 有何用？删掉后出问题了!

我在认为无用的情况下删除了这个东西，后来网站出现提示：

Warning: file(includes/spiders.txt) [function.file]: failed to open stream: No such file or directory in /home4/hahau/public_html/includes/init_includes/init_sessions.php on line 77

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home4/hahau/public_html/includes/init_includes/init_sessions.php:77) in /home4/hahau/public_html/includes/functions/sessions.php on line 114

Warning: Cannot modify header information - headers already sent by (output started at /home4/hahau/public_html/includes/init_includes/init_sessions.php:77) in /home4/hahau/public_html/includes/init_includes/init_templates.php on line 78

我看了这个init_session.php:

1.   if (isset($_COOKIE['cookie_test'])) {
   
2.     zen_session_start();
   
3.     $session_started = true;
   
4.   }
   
5. } elseif (SESSION_BLOCK_SPIDERS == 'True') {
   
6.   $user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
   
7.   $spider_flag = false;
   
8.   if (zen_not_null($user_agent)) {
   
9.     $spiders = file(DIR_WS_INCLUDES . 'spiders.txt'); // 这个文件在这里调用，到底什么意思，往指教。
   
10.     for ($i=0, $n=sizeof($spiders); $i<$n; $i++) {
    
11.       if (zen_not_null($spiders[$i]) && substr($spiders[$i], 0, 4) != '$Id:') {
    
12.         if (is_integer(strpos($user_agent, trim($spiders[$i])))) {
    
13.           $spider_flag = true;
    
14.           break;
    
15.         }
    
16.       }
    
17.     }
    
18.   }
    
19.   if ($spider_flag == false) {
    
20.     zen_session_start();
    
21.     $session_started = true;
    
22.   } else {
    
23.     if (isset($_GET['zenid']) && $_GET['zenid'] != '') {
    
24.       $tmp = (isset($_GET['main_page']) && $_GET['main_page'] != '') ? $_GET['main_page'] : FILENAME_DEFAULT;
    
25.       @header("HTTP/1.1 301 Moved Permanently");
    
26.       @zen_redirect(@zen_href_link($tmp, @zen_get_all_get_params(array('zenid')), $request_type, FALSE));
    
27.       unset($tmp);
    
28.       die();
    
29.     }
    
30.   }
    
31. } else {
    
32.   zen_session_start();
    
33.   $session_started = true;
    
34. }
    
35. unset($spiders);

复制代码

什么意思，我该如何恢复？谢谢指教。

神马

既然是删了spiders.txt之后出现这个问题，那就还原一下这一个文件就是了，没有备份点话可以下载安装包，然后上传spiders.txt