gelenin ip adresi gerçek ip olup olmadığını öğrenmek real ip
PHP- Kodu:
function getIP()
{
// Find the user's IP address. (but don't let it give you 'unknown'!)
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_CLIENT_IP']) && (preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['HTTP_CLIENT_IP']) == 0 || preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['REMOTE_ADDR']) != 0))
{
// We have both forwarded for AND client IP... check the first forwarded for as the block - only switch if it's better that way.
if (strtok($_SERVER['HTTP_X_FORWARDED_FOR'], '.') != strtok($_SERVER['HTTP_CLIENT_IP'], '.') && '.' . strtok($_SERVER['HTTP_X_FORWARDED_FOR'], '.') == strrchr($_SERVER['HTTP_CLIENT_IP'], '.') && (preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['HTTP_X_FORWARDED_FOR']) == 0 || preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['REMOTE_ADDR']) != 0))
$_SERVER['REMOTE_ADDR'] = implode('.', array_reverse(explode('.', $_SERVER['HTTP_CLIENT_IP'])));
else
$_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_CLIENT_IP'];
}
if (!empty($_SERVER['HTTP_CLIENT_IP']) && (preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['HTTP_CLIENT_IP']) == 0 || preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['REMOTE_ADDR']) != 0))
{
// Since they are in different blocks, it's probably reversed.
if (strtok($_SERVER['REMOTE_ADDR'], '.') != strtok($_SERVER['HTTP_CLIENT_IP'], '.'))
$_SERVER['REMOTE_ADDR'] = implode('.', array_reverse(explode('.', $_SERVER['HTTP_CLIENT_IP'])));
else
$_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_CLIENT_IP'];
}
elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
{
// If there are commas, get the last one.. probably.
if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ',') !== false)
{
$ips = array_reverse(explode(', ', $_SERVER['HTTP_X_FORWARDED_FOR']));
// Go through each IP...
foreach ($ips as $i => $ip)
{
// Make sure it's in a valid range...
if (preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $ip) != 0 && preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['REMOTE_ADDR']) == 0)
continue;
// Otherwise, we've got an IP!
$_SERVER['REMOTE_ADDR'] = trim($ip);
break;
}
}
// Otherwise just use the only one.
elseif (preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['HTTP_X_FORWARDED_FOR']) == 0 || preg_match('~^((0|10|172\.16|192\.168|255|127\.0)\.|unknown)~', $_SERVER['REMOTE_ADDR']) != 0)
$_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_X_FORWARDED_FOR'];
}
elseif (!isset($_SERVER['REMOTE_ADDR']))
$_SERVER['REMOTE_ADDR'] = '';
}
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