Redirect depending on the country?

Question

PHP

How can I redirect depending on the country?
If Russia, then do not redirect, just the main page
If another page, then redirect to /en

Answer 1

if the country is geoIP
if the browser language is sufficient - $_SERVER['HTTP_ACCEPT_LANGUAGE']

Answer 2

The option is much larger than the person above, but it's working...

//Получаем IP пользователя
$ip =  $_SERVER['REMOTE_ADDR'];

//Функция whois для определения страны по IP\
function whois($ip) {
  if ($ip!="") {
    $sock = fsockopen ("whois.ripe.net",43,$errno,$errstr);
    if ($sock) {
       fputs ($sock, $ip."\r\n");
      while (!feof($sock)) {
        $str.=trim(fgets ($sock,128)." <br>");
      }
    }
    else {
          $str.="$errno($errstr)";
      return;
    }
    fclose ($sock);
  }
  return $str;
  }

//Получаем whois данные для IP пользователя
$whois =  whois($_SERVER['REMOTE_ADDR']);

//Получаем страну, исходя из whois IP
$need = "country:";
 $pos = strpos($whois,$need);
 $search = substr($whois,$pos,18);
 $excount = explode(":", $search);
 $country = trim($excount[1]);

//Ну и сам код редиректа
if($country == "US") {
header('Location: /us/');
exit();
}

Answer 3

preg_match('/^\w{2}/', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $m);
switch (strtolower($m[0])) {
    case 'ru': break;
    default: header('Location: /en'); break;
}

Answer 4

I had an idea over the weekend
- you can try without cookies and unnecessary troubles
- the only question is how the search engines will react to this when indexing with the new structure and what will happen to the old links, how will the search engine process them?
Here is the structure of the site (accordingly, on each page of the site there will be the option to select the language forcibly, and the links will go, according to the structure of the site - below)
-----------------------
mydomain .ru
|
index.php (contains only the redirect (code block - 1 see below))
|
|\
mydomain.ru/eng/index.php (and all accesses to bcdct pages within the /eng/ prefix are obtained)
|
|
|\
mydomain.ru/rus/index.php (and get all accesses to bcdct pages within the /rus/ prefix)
(code block - 1)
-------------------- -------------
preg_match('/^\w{2}/', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $m);
switch (strtolower($m[0])) {
case 'ru': header('Location: /rus/index.php'); break;
default: header('Location: /eng/index.php'); break;
}