Any Coder can do this
if u wanna use php code and other users cant copy

Don't telling "AF copy your code" but anybody can copy JS
For multiple languages
<?php
$lang=split('[,;]',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
$lang=strtoupper($lang[0]);
$lang=split('[-]',$lang);
if (($lang[0]=="ZH") or ($lang[0]=="UY") or ($lang[0]=="BO")) {
header('Location: url_here');
exit;
}
?>
Only ZH traffic (I dont know what is ZH :P but see in the javascript and coded to php lol)
<?php
$lang=split('[,;]',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
$lang=strtoupper($lang[0]);
$lang=split('[-]',$lang);
if ($lang[0]=="ZH") {
header('Location: url_here');
exit;
}
?>