今天分享一个php在线统计蜘蛛代码，代码如下

<?php//蜘蛛访问统计
  $useragent = addslashes(strtolower($_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($useragent,'yisouspider') !== false){$bot = 'SMSpider';} elseif (strpos($useragent,'bingbot') !== false){$bot = 'bingbot';}
  
    $url = "http://".$_SERVER['HTTP_HOST']. $_SERVER['REQUEST_URI'];     
 if(isset($bot)){
   $fp = @fopen(date('Y-m-d').'.txt','a');
   fwrite($fp,date('Y-m-d H:i:s')."	".$_SERVER["REMOTE_ADDR"]."	".$bot."	".$url."
");
   fclose($fp);
 }     
?>

千行代码，Bug何处藏。 纵使上线又怎样，朝令改，夕断肠。