How can I detect IP address through HTML code?

Question

I am having some problem. I want to detect IP of someone who visiting my website. I know software tool by which we can detect IP but I wanna do this through HTML code or other programming language. How can I do this. Please suggest me some answer.

? · Accepted Answer

HTML cannot obtain IP addresses, PHP is required. Php is another programming language widely used for web development.

Code to grab IP address:

<?php

echo "Your IP is";

echo $_SERVER["REMOTE_ADDR"];

function get_ip_address() {
  // check for shared internet/ISP IP
  if (!empty($_SERVER['HTTP_CLIENT_IP']) && $this->validate_ip($_SERVER['HTTP_CLIENT_IP']))
   return $_SERVER['HTTP_CLIENT_IP'];

// check for IPs passing through proxies
  if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
   // check if multiple ips exist in var
    $iplist = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
    foreach ($iplist as $ip) {
     if ($this->validate_ip($ip))
      return $ip;
    }
   }

if (!empty($_SERVER['HTTP_X_FORWARDED']) && $this->validate_ip($_SERVER['HTTP_X_FORWARDED']))
   return $_SERVER['HTTP_X_FORWARDED'];
  if (!empty($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']) && $this->validate_ip($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']))
   return $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
  if (!empty($_SERVER['HTTP_FORWARDED_FOR']) && $this->validate_ip($_SERVER['HTTP_FORWARDED_FOR']))
   return $_SERVER['HTTP_FORWARDED_FOR'];
  if (!empty($_SERVER['HTTP_FORWARDED']) && $this->validate_ip($_SERVER['HTTP_FORWARDED']))
   return $_SERVER['HTTP_FORWARDED'];

// return unreliable ip since all else failed
   return $_SERVER['REMOTE_ADDR'];
 }

function validate_ip($ip) {
     if (filter_var($ip, FILTER_VALIDATE_IP, 
                         FILTER_FLAG_IPV4 | 
                         FILTER_FLAG_IPV6 |
                         FILTER_FLAG_NO_PRIV_RANGE | 
                         FILTER_FLAG_NO_RES_RANGE) === false)
         return false;
     self::$ip = $ip;
     return true;
 }
?>

Richard · Answer

use PHP

<?PHP

$ipaddress = $_SERVER["REMOTE_ADDR"];

Echo "Your IP is $ipaddress!";

?>

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How can I detect IP address through HTML code?

2 Answers