我需要从我的ip地址中提取主机名。我试过这个:
echo shell_exec('nslookup ' . $iper->Get_Ip())["Server"];
基本上它导出我需要的一切,但我无法访问主机IP。 它看起来与此相似:
Server: xxxxx
Address: xxxxx
Non-authoritative answer:
xxxxxxxa name = xxxxxx
Authoritative answers can be found from:
xx.in-addr.arpa nameserver = sec3.apnic.net.
xx.in-addr.arpa nameserver = ns3.lacnic.net.
xx.in-addr.arpa nameserver = tinnie.arin.net.
xx.in-addr.arpa nameserver = sns-pb.isc.org.
xx.in-addr.arpa nameserver = ns3.afrinic.net.
xx.in-addr.arpa nameserver = pri.authdns.ripe.net.
pri.authdns.ripe.net internet address = xxxx
sec3.apnic.net internet address = xxxxxxxx
sns-pb.isc.org internet address = xxxxxx
tinnie.arin.net internet address = xxxx
pri.authdns.ripe.net has AAAA address xxxx
sec3.apnic.net has AAAA address xxxx
sns-pb.isc.org has AAAA address xxxx
tinnie.arin.net has AAAA address xxxx
是否有一个更好的方法来获得主机,或者我不得不以这种方式搞乱,并尝试以某种方式提取主机IP .... 感谢
答案 0 :(得分:0)
以下是答案,我从ip获取主机的唯一方法是:
$data = (shell_exec('nslookup ' . $ip_adress));
以下是将返回主机IP的工作代码:
$iper = new IpEr();
$ip_adress = $iper->Get_Ip();
$data = (shell_exec('nslookup ' . $ip_adress));
$data = (explode("\n",$data));
$data = explode(":",$data[0]);
echo trim($data[1]);
如果有人需要,这里是iper课程:
<?php
class IpEr{
public function Get_Ip(){
if(!empty($_SERVER['HTTP_CLIENT_IP'])){
$ip=$_SERVER['HTTP_CLIENT_IP'];
}
elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}
else{
$ip=$_SERVER['REMOTE_ADDR'];
}
return $ip;
}
}
?>
答案 1 :(得分:0)
PHP有一个内置函数gethostbyaddr()
。
<?php
class IpEr{
public function Get_Ip(){
if(!empty($_SERVER['HTTP_CLIENT_IP'])){
$ip=$_SERVER['HTTP_CLIENT_IP'];
}
elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}
else{
$ip=$_SERVER['REMOTE_ADDR'];
}
return $ip;
}
}
$iper = new IpEr();
$ip_adress = $iper->Get_Ip();
echo gethostbyaddr($ip_adress);
?>
此外,作为一般规则,使用shell_exec
和exec
并不是一个好主意,因为它会引入潜在的安全漏洞