WordPress添加搜索引擎蜘蛛爬行记录功能

// 记录蜘蛛访问记录    
    function get_naps_bot(){  
    $useragent = strtolower($_SERVER['HTTP_USER_AGENT']);  
    if (strpos($useragent, 'googlebot') !== false){  
    return 'Googlebot';  
    }  
    if (strpos($useragent, 'bingbot') !== false){  
    return 'Bingbot';  
    }  
    if (strpos($useragent, 'slurp') !== false){  
    return 'Yahoobot';  
    }  
    if (strpos($useragent, 'baiduspider') !== false){  
    return 'Baiduspider';  
    }  
    if (strpos($useragent, 'sogou web spider') !== false){  
    return 'Sogouspider';  
    }  
    if (strpos($useragent, 'haosouspider') !== false){  
    return 'HaosouSpider';  
    }  
    if (strpos($useragent, 'yodaobot') !== false){  
    return 'YodaoBot';  
    }  
    return false;  
    }  
    function nowtime(){  
    date_default_timezone_set('Asia/Shanghai');  
    $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']; 
    $addr=$_SERVER['REMOTE_ADDR']; 
    $file="robotslogs.txt";  //根目录下记录蜘蛛访问的文件
    $time=nowtime();  
    $data=fopen($file,"a");  
    $PR="$_SERVER[REQUEST_URI]";  
    fwrite($data,"[$time] - $addr - $PR - $searchbot $tlc_thispage \r\n");  
    fclose($data);  
    }