PHP判断来访是搜索引擎蜘蛛还是普通用户的代码小结
1、推薦的一種方法：php判斷搜索引擎蜘蛛爬蟲還是人為訪問代碼,摘自Discuz x3.2
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | <?php function checkrobot($useragent=''){ ????static $kw_spiders = array('bot', 'crawl', 'spider' ,'slurp', 'sohu-search', 'lycos', 'robozilla'); ????static $kw_browsers = array('msie', 'netscape', 'opera', 'konqueror', 'mozilla'); ? ????$useragent = strtolower(empty($useragent) ? $_SERVER['HTTP_USER_AGENT'] : $useragent); ????if(strpos($useragent, 'http://') === false && dstrpos($useragent, $kw_browsers)) return false; ????if(dstrpos($useragent, $kw_spiders)) return true; ????return false; } function dstrpos($string, $arr, $returnvalue = false) { ????if(empty($string)) return false; ????foreach((array)$arr as $v) { ????????if(strpos($string, $v) !== false) { ????????????$return = $returnvalue ? $v : true; ????????????return $return; ????????} ????} ????return false; } if(checkrobot()){ ????echo '機器人爬蟲'; }else{ ????echo '人'; } ?> |
實際應(yīng)用中可以這樣判斷，直接不是搜索引擎才執(zhí)行操作
| 1 2 3 4 5 | <?php if(!checkrobot()){ //do something } ?> |
2、第二種方法：
使用PHP實現(xiàn)蜘蛛訪問日志統(tǒng)計
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | $useragent = addslashes(strtolower($_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); ?} |
第三種方法：
我們可以通過HTTP_USER_AGENT來判斷是否是蜘蛛，搜索引擎的蜘蛛都有自己的獨特標(biāo)志，下面列取了一部分。
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | function is_crawler() { ??$userAgent = strtolower($_SERVER['HTTP_USER_AGENT']); ??$spiders = array( ????'Googlebot', // Google 爬蟲 ????'Baiduspider', // 百度爬蟲 ????'Yahoo! Slurp', // 雅虎爬蟲 ????'YodaoBot', // 有道爬蟲 ????'msnbot' // Bing爬蟲 ????// 更多爬蟲關(guān)鍵字 ??); ??foreach ($spiders as $spider) { ????$spider = strtolower($spider); ????if (strpos($userAgent, $spider) !== false) { ??????return true; ????} ??} ??return false; } |
下面的php代碼附帶了更多的蜘蛛標(biāo)識
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | 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！"; } |
第四種方法：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | <?php $flag = false; $tmp = $_SERVER['HTTP_USER_AGENT']; if(strpos($tmp, 'Googlebot') !== false){ ??$flag = true; } else if(strpos($tmp, 'Baiduspider') >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: //www.jb51.net" . $_SERVER['REQUEST_URI']); ??// 自動轉(zhuǎn)到//www.jb51.net 對應(yīng)的網(wǎng)頁 ??// $_SERVER['REQUEST_URI'] 為域名后面的路徑 ??// 或換成header("Location: //www.jb51.net/abc/d.php"); ??exit(); } ?> ? 來自：https://www.jb51.net/article/72211.htm ? |
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