使用PHP实现蜘蛛访问日志统计_php技巧

$useragent = addslashes(strtolower($_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 = '百度';}
 elseif (strpos($ useragent,'搜狗蜘蛛') !== false){$bot = '搜狗';}
 elseif (strpos($useragent,'搜狗网络') !== false){$bot = '搜狗网络'; }
 elseif (strpos($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($useragent) ,'搜狐') !== false){$bot = '搜狐';}
 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 = '外国蜘蛛';}
 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);
 }