function getRealIpAddr(){
$ip = false;
if(! Empty($_SERVER['HTTP_CLIENT_IP'])){
$ip=$_SERVER['HTTP_CLIENT_IP'];
}elseif(! Empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}else {
$ip=$_SERVER['REMOTE_ADDR'];
}
return $ip;
}