how to get public ip of the client in php

Question

I have to get public IP of the remote system in php. I have tried

$_SERVER['REMOTE_ADDR']

getenv('REMOTE_ADDR');

but is always returning the private IP. Help to fix it.

possible duplicate of [How to get the client IP address in PHP?](http://stackoverflow.com/questions/3003145/how-to-get-the-client-ip-address-in-php) — Pindo, Sep 04 '15 at 06:14

score 1 · Answer 1 · answered Sep 04 '15 at 06:24

1

Try this:

$ip = !empty($_SERVER['HTTP_CLIENT_IP']) ? $_SERVER['HTTP_CLIENT_IP'] : (!empty($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR']);

Warning: you should extend it and sanitize, since headers can be easily manipulated.

answered Sep 04 '15 at 06:24

Claudio Bredfeldt

1,423
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When i try $_SERVER["HTTP_X_FORWARDED_FOR"] in online phpfiddle it is returning the both private and public ip but in my server is empty is there any thing to be done in php ini file ?? – Vignesh Palanichamy Sep 04 '15 at 06:33

score 0 · Answer 2 · answered Jul 25 '16 at 10:43

private function getIP()
{
    $client  = @$_SERVER['HTTP_CLIENT_IP'];
    $forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
    $remote  = $_SERVER['REMOTE_ADDR'];

    if(filter_var($client, FILTER_VALIDATE_IP))
    {
        $ip = $client;
    }
    elseif(filter_var($forward, FILTER_VALIDATE_IP))
    {
        $ip = $forward;
    }
    else
    {
        $ip = $remote;
    }

    return $ip;
}
echo getIP();

how to get public ip of the client in php

2 Answers2