PHP を使用してスパイダー アクセス ログ統計を実装する_PHP チュートリアル

$useragent = addedlashes(strto lower($_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 = '総合ウェブ';}
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 = '其它クモ';}
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);
}