PHP编程：PHP记录搜索引擎蜘蛛访问网站足迹的方法

#
# 表的结构 `naps_stats_bot`
#
CREATE TABLE `naps_stats_bot` (
`botid` int(10) unsigned NOT NULL auto_increment,`botname` varchar(100) NOT NULL default '',`botagent` varchar(200) NOT NULL default '',`bottag` varchar(100) NOT NULL default '',`botcount` int(11) NOT NULL default '0',`botlast` datetime NOT NULL default '0000-00-00 00:00:00',`botlasturl` varchar(250) NOT NULL default '',UNIQUE KEY `botid` (`botid`),KEY `botname` (`botname`)
) TYPE=MyISAM AUTO_INCREMENT=9 ;
#
# 导出表中的数据 `naps_stats_bot`
#
INSERT INTO `naps_stats_bot` VALUES (1,'Googlebot','Googlebot/2.X (+http://www.googlebot.com/bot.html)','googlebot','0000-00-00 00:00:00','');
INSERT INTO `naps_stats_bot` VALUES (2,'MSNbot','MSNBOT/0.1 (http://search.msn.com/msnbot.htm)','msnbot','');
INSERT INTO `naps_stats_bot` VALUES (3,'Inktomi Slurp','Slurp/2.0','slurp','');
INSERT INTO `naps_stats_bot` VALUES (4,'Baiduspider','Baiduspider+(+http://www.baidu.com/search/spider.htm)','baiduspider','');
INSERT INTO `naps_stats_bot` VALUES (5,'Yahoobot','Mozilla/5.0+(compatible;+Yahoo!+Slurp;+http://help.yahoo.com/help/us/ysearch/slurp)','');
INSERT INTO `naps_stats_bot` VALUES (6,'Sohubot','sohu-search','');
INSERT INTO `naps_stats_bot` VALUES (7,'Lycos','Lycos/x.x','lycos','');
INSERT INTO `naps_stats_bot` VALUES (8,'Robozilla','Robozilla/1.0','robozilla','');

<?php
/************************
* NAPS -- Network Article Publish System
* ----------------------------------------------
*     bot.php
*     -------------------
*  begin  : 2004-08-15
*
************************/
/************************
*
*  This program is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License.
*
************************/
/************************
*
*  NAPS产品是自由软件.你可以且必须根据《GNU GPL-GNU通用公共许可证》的相关规定
*  复制、修改及分发NAPS产品.任何以NAPS产品为基础的衍生发行版未必须经过飘飘的授权.
*
************************/
error_reporting(E_ALL & ~E_NOTICE);
function get_naps_bot()
{
 $useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
 if (strpos($useragent,'googlebot') !== false){
  return 'Googlebot';
 }
 if (strpos($useragent,'msnbot') !== false){
  return 'MSNbot';
 }
 if (strpos($useragent,'slurp') !== false){
  return 'Yahoobot';
 }
 if (strpos($useragent,'baiduspider') !== false){
  return 'Baiduspider';
 }
 if (strpos($useragent,'sohu-search') !== false){
  return 'Sohubot';
 }
 if (strpos($useragent,'lycos') !== false){
  return 'Lycos';
 }
 if (strpos($useragent,'robozilla') !== false){
  return 'Robozilla';
 }    
 return false;
}
$tlc_thispage = addslashes($_SERVER['HTTP_USER_AGENT']);
//添加蜘蛛的抓取记录
$searchbot = get_naps_bot();
if ($searchbot) {
 $DB_naps->query("UPDATE naps_stats_bot SET botcount=botcount+1,botlast=NOW(),botlasturl='$tlc_thispage' WHERE botname='$searchbot'");
}
?>