我们可以用查看网站日志来看蜘蛛的来访情况，我们也可以用下面的代码来统计蜘蛛来我们网站的纪录。

//统计蜘蛛
function get_naps_bot(){
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
if (strpos($useragent, 'googlebot') !== false){
return 'Googlebot';
}
if (strpos($useragent, 'msnbot') !== false){
return 'MSNbot';
}
if (strpos($useragent, 'slurp') !== false){
return 'Yahoobot';
}
if (strpos($useragent, 'baiduspider') !== false){
return 'Baiduspider';
}
if (strpos($useragent, 'sohu-search') !== false){
return 'Sohubot';
}
if (strpos($useragent, 'lycos') !== false){
return 'Lycos';
}
if (strpos($useragent, 'robozilla') !== false){
return 'Robozilla';
}
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'];
$file="robotslogs.txt";
$time=nowtime();
$data=fopen($file,"a");
$PR="$_SERVER[REQUEST_URI]";
fwrite($data,"Time:$time robot:$searchbot URL:$tlc_thispage\n page:$PR\r\n");
fclose($data);
}

添加之前需要在根目录新建一个txt文本robotslogs.txt，权限设置为777，然后访问该文件就可以看到蜘蛛的来访记录了。很方便！