我想知道使用我网站的客户的IP地址。我使用的是PHP的$_SERVER
:
$_SERVER['REMOTE_ADDR'];
但是我看到它不能使用这个给出正确的IP地址。我得到了我的IP地址,发现它与我的IP地址不同,我还可以在一些网站上看到我的IP地址,例如:
http://whatismyipaddress.com/
我粘贴给我的PHP函数的IP地址,但这个网站没有显示任何结果。这个问题是如何产生的,如何获取客户端的IP地址?
发布于 2013-03-29 15:35:37
获取访问者/客户端的IP address的最简单方法是使用$_SERVER['REMOTE_ADDR']
或$_SERVER['REMOTE_HOST']
变量。
但是,有时这不会返回访问者的正确IP地址,因此我们可以使用其他一些服务器变量来获取IP地址。
下面的两个函数等效,只是检索值的方式和位置有所不同。
getenv()用于在PHP中获取环境变量的值。
// Function to get the client IP address
function get_client_ip() {
$ipaddress = '';
if (getenv('HTTP_CLIENT_IP'))
$ipaddress = getenv('HTTP_CLIENT_IP');
else if(getenv('HTTP_X_FORWARDED_FOR'))
$ipaddress = getenv('HTTP_X_FORWARDED_FOR');
else if(getenv('HTTP_X_FORWARDED'))
$ipaddress = getenv('HTTP_X_FORWARDED');
else if(getenv('HTTP_FORWARDED_FOR'))
$ipaddress = getenv('HTTP_FORWARDED_FOR');
else if(getenv('HTTP_FORWARDED'))
$ipaddress = getenv('HTTP_FORWARDED');
else if(getenv('REMOTE_ADDR'))
$ipaddress = getenv('REMOTE_ADDR');
else
$ipaddress = 'UNKNOWN';
return $ipaddress;
}
$_SERVER是一个包含web服务器创建的服务器变量的数组。
// Function to get the client IP address
function get_client_ip() {
$ipaddress = '';
if (isset($_SERVER['HTTP_CLIENT_IP']))
$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
else if(isset($_SERVER['HTTP_X_FORWARDED']))
$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
else if(isset($_SERVER['HTTP_FORWARDED_FOR']))
$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
else if(isset($_SERVER['HTTP_FORWARDED']))
$ipaddress = $_SERVER['HTTP_FORWARDED'];
else if(isset($_SERVER['REMOTE_ADDR']))
$ipaddress = $_SERVER['REMOTE_ADDR'];
else
$ipaddress = 'UNKNOWN';
return $ipaddress;
}
发布于 2013-10-05 04:11:23
在PHP 5.3或更高版本中,您可以像这样获得它:
$ip = getenv('HTTP_CLIENT_IP')?:
getenv('HTTP_X_FORWARDED_FOR')?:
getenv('HTTP_X_FORWARDED')?:
getenv('HTTP_FORWARDED_FOR')?:
getenv('HTTP_FORWARDED')?:
getenv('REMOTE_ADDR');
发布于 2013-11-20 03:28:55
$ipaddress = '';
if ($_SERVER['HTTP_CLIENT_IP'] != '127.0.0.1')
$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
else if ($_SERVER['HTTP_X_FORWARDED_FOR'] != '127.0.0.1')
$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
else if ($_SERVER['HTTP_X_FORWARDED'] != '127.0.0.1')
$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
else if ($_SERVER['HTTP_FORWARDED_FOR'] != '127.0.0.1')
$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
else if ($_SERVER['HTTP_FORWARDED'] != '127.0.0.1')
$ipaddress = $_SERVER['HTTP_FORWARDED'];
else if ($_SERVER['REMOTE_ADDR'] != '127.0.0.1')
$ipaddress = $_SERVER['REMOTE_ADDR'];
else
$ipaddress = 'UNKNOWN';
https://stackoverflow.com/questions/15699101
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