php PHP显示服务器IP地址
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PHP display server IP Address
提问by Ethan Mick
I'm working on a website, and one of the things I would like to do is display MY IP address to users. The website is made with CodeIgniter, so I was looking to find my server IP with PHP. The IP address may change (it's a roamer), so I'd like to find it dynamically, not just hard code it. I tried this:
我在一个网站上工作，我想做的一件事是向用户显示我的 IP 地址。该网站是用 CodeIgniter 制作的，所以我想用 PHP 找到我的服务器 IP。IP 地址可能会更改（它是漫游器），因此我想动态查找它，而不仅仅是对其进行硬编码。我试过这个：
$data['hostname'] = NULL;
$data['ip'] = NULL;
$var = gethostname();
if ($var === FALSE) {
$var = NULL;
} else {
$data['hostname'] = $var;
$data['ip'] = gethostbyname($var);
}
However, instead of giving me the Hostname and the IP, I got: "Moria" and "127.0.1.1". Not quite what I am looking for. Rather, it should say "Moria.student.rit.edu" for the Hostname, and the IP address. Any help?
但是，我没有给我主机名和 IP，而是得到：“Moria”和“127.0.1.1”。不完全是我正在寻找的。相反，它应该为主机名和 IP 地址显示“Moria.student.rit.edu”。有什么帮助吗？
回答by Matthew
Try $_SERVER['SERVER_ADDR']. It will be the IP address that the server is listening on. You can use DNS functions (e.g., gethostbyaddr()) to get the host name.
试试$_SERVER['SERVER_ADDR']。它将是服务器正在侦听的 IP 地址。您可以使用 DNS 功能（例如，gethostbyaddr()）来获取主机名。
See http://www.php.net/manual/en/reserved.variables.server.php.
请参阅http://www.php.net/manual/en/reserved.variables.server.php。
回答by ravi
for server ip address $_SERVER['SERVER_ADDR'];
对于服务器 ip 地址 $_SERVER['SERVER_ADDR'];
and for server port $_SERVER['SERVER_PORT'];
和服务器端口 $_SERVER['SERVER_PORT'];
回答by jmurray
If your laravel application is running on an internal server, you can use the following to get the external address of the server:
如果您的 Laravel 应用程序运行在内部服务器上，您可以使用以下命令来获取服务器的外部地址：
$external_ip = exec('curl http://ipecho.net/plain; echo');
