PHP判断来访是搜索引擎蜘蛛还是普通用户的代码小结

php  /  管理员 发布于 7年前   198

1、推荐的一种方法：php判断搜索引擎蜘蛛爬虫还是人为访问代码,摘自Discuz x3.2

实际应用中可以这样判断，直接不是搜索引擎才执行操作

2、第二种方法：

使用PHP实现蜘蛛访问日志统计

$useragent = addslashes(strtolower($_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); }

第三种方法：

我们可以通过HTTP_USER_AGENT来判断是否是蜘蛛，搜索引擎的蜘蛛都有自己的独特标志，下面列取了一部分。

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

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！"; } 

第四种方法：

0){  $flag = true;} else if(strpos($tmp, 'Yahoo! Slurp') !== false){  $flag = true;} else if(strpos($tmp, 'msnbot') !== false){  $flag = true;} else if(strpos($tmp, 'Sosospider') !== false){  $flag = true;} else if(strpos($tmp, 'YodaoBot') !== false || strpos($tmp, 'OutfoxBot') !== false){  $flag = true;} else if(strpos($tmp, 'Sogou web spider') !== false || strpos($tmp, 'Sogou Orion spider') !== false){  $flag = true;} else if(strpos($tmp, 'fast-webcrawler') !== false){  $flag = true;} else if(strpos($tmp, 'Gaisbot') !== false){  $flag = true;} else if(strpos($tmp, 'ia_archiver') !== false){  $flag = true;} else if(strpos($tmp, 'altavista') !== false){  $flag = true;} else if(strpos($tmp, 'lycos_spider') !== false){  $flag = true;} else if(strpos($tmp, 'Inktomi slurp') !== false){  $flag = true;}if($flag == false){  header("Location: " . $_SERVER['REQUEST_URI']);  // 自动转到 对应的网页  // $_SERVER['REQUEST_URI'] 为域名后面的路径  // 或换成header("Location: abc/d.php");  exit();}?>

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