通过PHP程序知道蜘蛛是否访问你的网站(附代码)

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Libérer： 2016-06-02 09:14:26

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搜索引擎的蜘蛛访问网站是通过远程抓取页面来进行的，我们不能使用JS代码来取得蜘蛛的Agent信息，但是我们可以通过image标签，这样我们就可以得到蜘蛛的agent资料了，通过对agent资料的分析，就可以确定蜘蛛的种类、性别等因素，我们在通过数据库或者文本来记录就可以进行统计了。

数据库结构：

# 
# 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 &#39;&#39;, 
`botagent` varchar(200) NOT NULL default &#39;&#39;, 
`bottag` varchar(100) NOT NULL default &#39;&#39;, 
`botcount` int(11) NOT NULL default &#39;0&#39;, 
`botlast` datetime NOT NULL default &#39;0000-00-00 00:00:00&#39;, 
`botlasturl` varchar(250) NOT NULL default &#39;&#39;, 
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, &#39;Googlebot&#39;, &#39;Googlebot/2.X ( http://www.googlebot.com/bot.html)&#39;, &#39;googlebot&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (2, &#39;MSNbot&#39;, &#39;MSNBOT/0.1 (http://search.msn.com/msnbot.htm)&#39;, &#39;msnbot&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (3, &#39;Inktomi Slurp&#39;, &#39;Slurp/2.0&#39;, &#39;slurp&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (4, &#39;Baiduspider&#39;, &#39;Baiduspider ( http://www.baidu.com/search/spider.htm)&#39;, &#39;baiduspider&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (5, &#39;Yahoobot&#39;, &#39;Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)&#39;, &#39;slurp&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (6, &#39;Sohubot&#39;, &#39;sohu-search&#39;, &#39;sohu-search&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (7, &#39;Lycos&#39;, &#39;Lycos/x.x&#39;, &#39;lycos&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;); 
INSERT INTO `naps_stats_bot` VALUES (8, &#39;Robozilla&#39;, &#39;Robozilla/1.0&#39;, &#39;robozilla&#39;, 0, &#39;0000-00-00 00:00:00&#39;, &#39;&#39;);

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PHP程序：

<?php
error_reporting(E_ALL & ~E_NOTICE);
function get_naps_bot() {
    $useragent = strtolower($_SERVER[&#39;HTTP_USER_AGENT&#39;]);
    if (strpos($useragent, &#39;googlebot&#39;) !== false) {
        return &#39;Googlebot&#39;;
    }
    if (strpos($useragent, &#39;msnbot&#39;) !== false) {
        return &#39;MSNbot&#39;;
    }
    if (strpos($useragent, &#39;slurp&#39;) !== false) {
        return &#39;Yahoobot&#39;;
    }
    if (strpos($useragent, &#39;baiduspider&#39;) !== false) {
        return &#39;Baiduspider&#39;;
    }
    if (strpos($useragent, &#39;sohu-search&#39;) !== false) {
        return &#39;Sohubot&#39;;
    }
    if (strpos($useragent, &#39;lycos&#39;) !== false) {
        return &#39;Lycos&#39;;
    }
    if (strpos($useragent, &#39;robozilla&#39;) !== false) {
        return &#39;Robozilla&#39;;
    }
    return false;
}
$tlc_thispage = addslashes($_SERVER[&#39;HTTP_USER_AGENT&#39;]);
//添加蜘蛛的抓取记录
$searchbot = get_naps_bot();
if ($searchbot) {
    $DB_naps->query("UPDATE naps_stats_bot SET botcount=botcount 1, botlast=NOW(), botlasturl=&#39;$tlc_thispage&#39; WHERE botname=&#39;$searchbot&#39;");
}
?>

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