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Strange PHP Issue
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Strange PHP Issue

xaitmixaitmi Member

I have CentMinMod running on a server.

<?
function getRealIpAddr()
{
    if (!empty($_SERVER['HTTP_CLIENT_IP']))   //check ip from share internet
    {
        $ip=$_SERVER['HTTP_CLIENT_IP'];
    }
    elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))   //to check ip is pass from proxy
    {
        $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
    }
    else
    {
        $ip=$_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}

echo getRealIpAddr();
?>

Basically it returns this.

MyIPaddress, MyIPAddress

so like

99.XX.XX.XXX,99.XX.XX.XXX

Anyone know why it does that? I only need my IP to show once, because it's causing problems with an application I am coding.

Comments

  • Is this the full code or just part? Reason I ask is because may the function is getting called twice from somewhere else.

  • FranciscoFrancisco Top Provider

    HTTP_X_FORWARDED_FOR is getting populated with it.

    Do print_r($_SERVER); and you'll see the same thing from it.

    Francisco

    BuyVM - Free DirectAdmin, Softaculous, & Blesta! / Anycast Support! / Windows 2008, 2012, & 2016! / Unmetered Bandwidth!
    BuyShared - Shared & Reseller Hosting / cPanel + Softaculous + CloudLinux / Pure SSD! / Free Dedicated IP Address
  • @CFarence said:
    Is this the full code or just part? Reason I ask is because may the function is getting called twice from somewhere else.

    thats the full php code in that file.

  • draziloxdrazilox Member
    edited April 2016

    return explode(',', $ip)[0];

    EDIT: This might not be so good answer. It just takes the first IP.

  • xaitmixaitmi Member
    edited April 2016

    @Francisco said:
    HTTP_X_FORWARDED_FOR is getting populated with it.

    Do print_r($_SERVER); and you'll see the same thing from it.

    Francisco

    here is the output of your command. what do you recommend?

    http://pastebin.com/crW8nduf

  • FranciscoFrancisco Top Provider

    @xaitmi said:

    What @drazilox said isn't bad, but you'll likely want to skip the first entry since it's sometimes 127.0.0.1.

    Francisco

    BuyVM - Free DirectAdmin, Softaculous, & Blesta! / Anycast Support! / Windows 2008, 2012, & 2016! / Unmetered Bandwidth!
    BuyShared - Shared & Reseller Hosting / cPanel + Softaculous + CloudLinux / Pure SSD! / Free Dedicated IP Address
  • All right. Thanks for the quick help everyone.

    Added in
    return explode(',', $ip)[1];

  • draziloxdrazilox Member
    edited April 2016

    I'm not sure if HTTP_X_FORWARDED_FOR always returns multiple IPs. When it doensn't, then that fails. Maybe it's better to grab the last one.

    end(explode(',', $ip));

    EDIT: Check the comments on this http://stackoverflow.com/a/24275009

  • What proxy do you have in front of it?

  • xaitmixaitmi Member
    edited April 2016

    @CFarence said:
    What proxy do you have in front of it?

    nginx reverse proxy on another server with this config

    server {
          listen        443;
          server_name    domain.com;
          access_log   /home/logs/cv.access.log;
          error_log /home/logs/cv.error.log;
    
          location / {
                proxy_pass https://webserveriphere/;
                proxy_redirect off;
                proxy_set_header Host $host;
                proxy_set_header X-Forwarded-SSL on;
                proxy_set_header X-Forwarded-Proto $scheme;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_max_temp_file_size 0;
                client_max_body_size 10m;
                client_body_buffer_size 128k;
                proxy_connect_timeout 90;
                proxy_send_timeout 90;
                proxy_read_timeout 90;
                proxy_buffer_size 4k;
                proxy_buffers 4 32k;
                proxy_busy_buffers_size 64k;
                proxy_temp_file_write_size 64k;
    
    #CloudFlare
    set_real_ip_from 199.27.128.0/21;
    set_real_ip_from 173.245.48.0/20;
    set_real_ip_from 103.21.244.0/22;
    set_real_ip_from 103.22.200.0/22;
    set_real_ip_from 103.31.4.0/22;
    set_real_ip_from 141.101.64.0/18;
    set_real_ip_from 108.162.192.0/18;
    set_real_ip_from 190.93.240.0/20;
    set_real_ip_from 188.114.96.0/20;
    set_real_ip_from 197.234.240.0/22;
    set_real_ip_from 198.41.128.0/17;
    set_real_ip_from 162.158.0.0/15;
    set_real_ip_from 104.16.0.0/12;
    set_real_ip_from 172.64.0.0/13;
    real_ip_header CF-Connecting-IP;
          }
    }
    
    
    

    Basically

    Cloudflare --> OVH VPS Reverse Proxy --> VPS with website on it

  • http://phptester.net/ Test your PHP code online without the need of a web server. (PHP 5.2, 5.3 and 5.4).

    https://profvps.com - VPS KVM SSD (USA) /w Promo Recurring: 10OFF | Skype: hoang.truong040

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