PHP屏蔽蜘蛛访问代码代码：

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

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！"; }

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"]."rn"); fclose($fp); }