PHP判断搜索引擎蜘蛛并自动记忆到文件的代码
代码如下：
function write_naps_bot(){
$useragent=get_naps_bot();
// echoExit($useragent);
if ($useragent=="false") return FALSE ;
date_default_timezone_set("Asia/Shanghai");
$date=date("Y-m-d H:i:s");
$ip=$_SERVER[REMOTE_ADDR];
$url="http://".$_SERVER[HTTP_HOST].$_SERVER[REQUEST_URI];
// echoExit($url);转载注明www.chhua.com
if (!file_exists("./log/bot.html")){
$botfile=fopen("./log/bot.html", "w");
$fileHeader="<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
<title>访问查看</title>
</head>
<a href=\"../?action=delbot\">删除日志</a><hr>
";
// echoExit($botfile);转载注明www.chhua.com
fputs($botfile, $fileHeader);
fclose($botfile);
}else
{ $filesize=filesize("./log/bot.html");
if ($filesize>=100000){
$botfile=fopen("./log/bot.html", "w");
$fileHeader="<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
<title>访问查看</title>
</head>
<a href=\"../?action=delbot\">删除日志</a><hr>
";
fputs($botfile, $fileHeader);
fclose($botfile);
}else {
$botfile=fopen("./log/bot.html", "a+");
}
//$size="<b>当前文件大小为：</b>".$filesize."<br>";转载注明www.chhua.com
$useragent="<b>USER:</b>".$useragent."<Br>";
$date="<b>TIME:</b>".$date."<Br>";
$ip="<b>IP:</b>".$ip."<Br>";
$url="<b>URL：</b><a href='$url' target='_blank'>".$url."</a><Br><Br>";
$fileStr=$useragent.$date.$ip.$url;
fputs($botfile, $fileStr);
fclose($botfile);
}
}
function get_naps_bot() {
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
if(strpos($useragent, 'googlebot') !== false){
return '<font color=blue>Googlebot</font>';
}
if(strpos($useragent, 'msnbot') !== false){
return 'MSNbot';
}
if(strpos($useragent, 'slurp') !== false){
return '<font color=green>Yahoobot</font>';
}
if(strpos($useragent, 'baiduspider') !== false){
return '<font color=red>Baiduspider</font>';
}
if(strpos($useragent, 'sohu-search') !== false){
return 'Sohubot';
}
if(strpos($useragent, 'lycos') !== false){
return 'Lycos';
}
if(strpos($useragent, 'robozilla') !== false){
return 'Robozilla';
}
return "false";
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