Code Snippet > PHP

Get users' IP Address with PHP

Get the real ip address even when they are using Proxy.

PHP

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;
}

Source: http://roshanbh.com.np/2007/12/getting-real-ip-address-in-php.html



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1 comment

eriic Fri, 11th February 2011 My full function looks like that :

function ip()
{
if(isset($_SERVER['HTTP_CLIENT_IP']) && $_SERVER['HTTP_CLIENT_IP']) return $_SERVER['HTTP_CLIENT_IP'];
if(isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR']) return $_SERVER['HTTP_X_FORWARDED_FOR'];
if(isset($_SERVER['HTTP_X_FORWARDED']) && $_SERVER['HTTP_X_FORWARDED']) return $_SERVER['HTTP_X_FORWARDED'];
if(isset($_SERVER['HTTP_FORWARDED_FOR']) && $_SERVER['HTTP_FORWARDED_FOR']) return $_SERVER['HTTP_FORWARDED_FOR'];
if(isset($_SERVER['HTTP_FORWARDED']) && $_SERVER['HTTP_FORWARDED']) return $_SERVER['HTTP_FORWARDED'];
if(isset($_SERVER['HTTP_X_COMING_FROM']) && $_SERVER['HTTP_X_COMING_FROM']) return $_SERVER['HTTP_X_COMING_FROM'];
if(isset($_SERVER['HTTP_COMING_FROM']) && $_SERVER['HTTP_COMING_FROM']) return $_SERVER['HTTP_COMING_FROM'];
if(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR']) return $_SERVER['REMOTE_ADDR'];
return '';
}
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