Getting users ip in php

Question

I made this code to get users ip on my site currently i am checking it in my localhost but it is returning something like ::1. I am using xampp package , my code is

<?php
    echo $_SERVER['REMOTE_ADDR'];
?>

I would have got my ip 127.0.0.1 as i am on a localhost but it is returning ::1.

score 0 · Answer 1 · answered Aug 24 '15 at 06:54

0

The IP address "::1" is the new Internet addressing system. If you are writing code to handle IP addresses it will come across these more and more.

answered Aug 24 '15 at 06:54

Peter Blue

192
6

::1 is an exact IP address but is the IPv6 equivalent of 127.0.0.1 – Peter Blue Aug 24 '15 at 07:12
I don't think you can. IPv4 has about 4.3 Billion addresses whereas IPv6 has about 340,282,366,920,938,463,463,374,607,431,768,211,456 – Peter Blue Aug 24 '15 at 13:39
If you are getting ::1 it seems like your network has been set-up to use IPv6. If you are running Linux or FreeBSD you can force it to use IPv4 along side IPv6. – Peter Blue Aug 24 '15 at 13:54

score 0 · Accepted Answer · edited May 23 '17 at 12:22

According to this answer on SO

Localhost always translates to the loopback IP address 127.0.0.1 in IPv4, or ::1 in IPv6

So getting ::1 is actually expected behavior.

If you want to convert ::1 to the IPv4 equivalent of 127.0.0.1, you can use PHP's inet_ntop() function. See this question for more information.

$packed = chr(127) . chr(0) . chr(0) . chr(1);
$expanded = inet_ntop($packed);

/* Outputs: 127.0.0.1 */
echo $expanded;

$packed = str_repeat(chr(0), 15) . chr(1);
$expanded = inet_ntop($packed);

/* Outputs: ::1 */
echo $expanded;

score 0 · Answer 3 · answered Aug 24 '15 at 07:14

0

You can use dig with shell_exec

$ip = trim(shell_exec("dig +short myip.opendns.com @resolver1.opendns.com"));
echo ("My public IP: ".$ip);

answered Aug 24 '15 at 07:14

mdamia

4,447
1
24
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Getting users ip in php

3 Answers3