本文介绍下,php实现抓取蜘蛛爬虫痕迹的一段代码,有需要的朋友参考下。
用php代码分析web日志中蜘蛛爬虫痕迹,代码如下: <?php //获取蜘蛛爬虫名或防采集 //by bbs.it-home.org function isSpider(){ $bots = array( 'Google' => 'googlebot', 'Baidu' => 'baiduspider', 'Yahoo' => 'yahoo slurp', 'Soso' => 'sosospider', 'Msn' => 'msnbot', 'Altavista' => 'scooter ', 'Sogou' => 'sogou spider', 'Yodao' => 'yodaobot' ); $userAgent = strtolower($_SERVER['HTTP_USER_AGENT']); foreach ($bots as $k => $v){ if (strstr($v,$userAgent)){ return $k; break; } } return false; } //by bbs.it-home.org //获取哪种蜘蛛爬虫后保存蜘蛛痕迹。 //根据采集时HTTP_USER_AGENT是否为空来防止采集 //抓蜘蛛爬虫 --by bbs.it-home.org $spi = isSpider(); if($spi){ $tlc_thispage = addslashes($_SERVER['HTTP_USER_AGENT']); $file = 'robot.txt'; $time = date('Y-m-d H:i:s',mktime()); $handle = fopen($file,'a+'); $PR = $_SERVER['REQUEST_URI']; fwrite($handle, "Time:{$time} ROBOT:{$spi} AGENT:{$tlc_thispage} URL:{$PR} \n\r"); fclose($handle); } ?> 로그인 후 복사 |