PHP屏蔽蜘蛛访问代码及常用搜索引擎的HTTP_USER_AGENT

时间:2022-09-08 17:07:59

PHP屏蔽蜘蛛访问代码代码

PHP屏蔽蜘蛛访问代码及常用搜索引擎的HTTP_USER_AGENT

常用搜索引擎名与 HTTP_USER_AGENT对应值

百度baiduspider

谷歌googlebot

搜狗sogou

腾讯SOSOsosospider

雅虎slurp

有道youdaobot

Bingbingbot

MSNmsnbot

Alexais_archiver

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function is_crawler() {
  $userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
  $spiders = array(
    'Googlebot', // Google 爬虫
    'Baiduspider', // 百度爬虫
    'Yahoo! Slurp', // 雅虎爬虫
    'YodaoBot', // 有道爬虫
    'msnbot' // Bing爬虫
    // 更多爬虫关键字
  );
  foreach ($spiders as $spider) {
    $spider = strtolower($spider);
    if (strpos($userAgent, $spider) !== false) {
      return true;
    }
  }
  return false;
}

下面的php代码附带了更多的蜘蛛标识

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function isCrawler() {
    echo $agent= strtolower($_SERVER['HTTP_USER_AGENT']);
    if (!empty($agent)) {
        $spiderSite= array(
            "TencentTraveler",
            "Baiduspider+",
            "BaiduGame",
            "Googlebot",
            "msnbot",
            "Sosospider+",
            "Sogou web spider",
            "ia_archiver",
            "Yahoo! Slurp",
            "YoudaoBot",
            "Yahoo Slurp",
            "MSNBot",
            "Java (Often spam bot)",
            "BaiDuSpider",
            "Voila",
            "Yandex bot",
            "BSpider",
            "twiceler",
            "Sogou Spider",
            "Speedy Spider",
            "Google AdSense",
            "Heritrix",
            "Python-urllib",
            "Alexa (IA Archiver)",
            "Ask",
            "Exabot",
            "Custo",
            "OutfoxBot/YodaoBot",
            "yacy",
            "SurveyBot",
            "legs",
            "lwp-trivial",
            "Nutch",
            "StackRambler",
            "The web archive (IA Archiver)",
            "Perl tool",
            "MJ12bot",
            "Netcraft",
            "MSIECrawler",
            "WGet tools",
            "larbin",
            "Fish search",
        );
        foreach($spiderSite as $val) {
            $str = strtolower($val);
            if (strpos($agent, $str) !== false) {
                return true;
            }
        }
    } else {
        return false;
    }
}
if (isCrawler()){
    echo "你好蜘蛛精!";
}
else{
   echo "你不是蜘蛛精啊!";
}

使用PHP实现蜘蛛访问日志统计

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$useragent = addslashes(strtolower($_SERVER['HTTP_USER_AGENT']));
 
 if (strpos($useragent, 'googlebot')!== false){$bot = 'Google';}
 elseif (strpos($useragent,'mediapartners-google') !== false){$bot = 'Google Adsense';}
 elseif (strpos($useragent,'baiduspider') !== false){$bot = 'Baidu';}
 elseif (strpos($useragent,'sogou spider') !== false){$bot = 'Sogou';}
 elseif (strpos($useragent,'sogou web') !== false){$bot = 'Sogou web';}
 elseif (strpos($useragent,'sosospider') !== false){$bot = 'SOSO';}
 elseif (strpos($useragent,'360spider') !== false){$bot = '360Spider';}
 elseif (strpos($useragent,'yahoo') !== false){$bot = 'Yahoo';}
 elseif (strpos($useragent,'msn') !== false){$bot = 'MSN';}
 elseif (strpos($useragent,'msnbot') !== false){$bot = 'msnbot';}
 elseif (strpos($useragent,'sohu') !== false){$bot = 'Sohu';}
 elseif (strpos($useragent,'yodaoBot') !== false){$bot = 'Yodao';}
 elseif (strpos($useragent,'twiceler') !== false){$bot = 'Twiceler';}
 elseif (strpos($useragent,'ia_archiver') !== false){$bot = 'Alexa_';}
 elseif (strpos($useragent,'iaarchiver') !== false){$bot = 'Alexa';}
 elseif (strpos($useragent,'slurp') !== false){$bot = '雅虎';}
 elseif (strpos($useragent,'bot') !== false){$bot = '其它蜘蛛';}
 if(isset($bot)){
   $fp = @fopen('bot.txt','a');
   fwrite($fp,date('Y-m-d H:i:s')."\t".$_SERVER["REMOTE_ADDR"]."\t".$bot."\t".'http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]."\r\n");
   fclose($fp);
 }