function getip() {
static $ip = \'\';
$ip = $_SERVER[\'REMOTE_ADDR\'];
if(isset($_SERVER[\'HTTP_CDN_SRC_IP\'])) {
$ip = $_SERVER[\'HTTP_CDN_SRC_IP\'];
} elseif (isset($_SERVER[\'HTTP_CLIENT_IP\']) && preg_match(\'/^([0-9]{1,3}\.){3}[0-9]{1,3}$/\', $_SERVER[\'HTTP_CLIENT_IP\'])) {
$ip = $_SERVER[\'HTTP_CLIENT_IP\'];
} elseif(isset($_SERVER[\'HTTP_X_FORWARDED_FOR\']) AND preg_match_all(\'#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#s\', $_SERVER[\'HTTP_X_FORWARDED_FOR\'], $matches)) {
foreach ($matches[0] AS $xip) {
if (!preg_match(\'#^(10|172\.16|192\.168)\.#\', $xip)) {
$ip = $xip;
break;
}
}
}
return $ip;
}