PHP判断搜索引擎蜘蛛并自动记忆到文件的代码_PHP教程

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=" 
 
 
 
删除日志
 
"; 
// 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=" 
 
 
 
删除日志
 
"; 
fputs($botfile, $fileHeader); 
fclose($botfile); 
}else { 
$botfile=fopen("./log/bot.html", "a+"); 
} 

//$size="当前文件大小为：".$filesize."
";转载注明www.chhua.com 

$useragent="USER:".$useragent."
"; 
$date="TIME:".$date."
"; 
$ip="IP:".$ip."
"; 
$url="URL：".$url."

"; 
$fileStr=$useragent.$date.$ip.$url; 
fputs($botfile, $fileStr); 
fclose($botfile); 
} 
} 

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


http://www.bkjia.com/PHPjc/324866.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/324866.htmlTechArticle 代码如下:
function write_naps_bot(){ $useragent=get_naps_bot(); // echoExit($useragent); if ($useragent=="false") return FALSE ; date_default_timezone_set("Asia/Sh...