function get_naps_bot()  
{  
  $useragent = strtolower($_SERVER['HTTP_USER_AGENT']);  
  if (strpos($useragent, 'googlebot') !== false){  
    return 'Google';  
  }  

  if (strpos($useragent, 'baiduspider') !== false){  
    return 'Baidu';  
  }  

  if (strpos($useragent, 'msnbot') !== false){  
    return 'Bing';  
  }  

  if (strpos($useragent, 'slurp') !== false){  
    return 'Yahoo';  
  }  

  if (strpos($useragent, 'sosospider') !== false){  
    return 'Soso';  
  }  

  if (strpos($useragent, 'sogou spider') !== false){  
    return 'Sogou';  
  }  

  if (strpos($useragent, 'yodaobot') !== false){  
    return 'Yodao';  
  }  

  return false;  
}  

function nowtime(){  
  $date=date("Y-m-d.G:i:s");  
  return $date;  
}  

$searchbot = get_naps_bot();  
if ($searchbot) {  
  $tlc_thispage = addslashes($_SERVER['HTTP_USER_AGENT']);  
  $url=$_SERVER['HTTP_REFERER'];  
  $file="www.phpfensi.com.txt";  
  $time=nowtime();  
  $data=fopen($file,"a");  
  fwrite($data,"Time:$time robot:$searchbot URL:$tlc_thispagen");  
  fclose($data);  
}