Language redirect with PHP and WordPress

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I need to create a language redirect function for a WordPress multisite that I’m working on. This redirect would be dependent on the user’s browser settings. I figured I could create a session in the header file so that when visiting the site, the site checks whether a session has already been set, then redirects accordingly. The code placed at the top of header.php – 

$url = $_SERVER['REQUEST_URI'];
function redirect() {
  $language = explode( ',', $_SERVER['HTTP_ACCEPT_LANGUAGE'] );
  switch( $language[0] ) {
    case 'sv':
      header( 'Location: /sv/' );
      break;
    case 'no':
      header( 'Location: /no/' );
      break;
    case 'da':
      header( 'Location: /da/' );
      break;
  }
}
if ( strlen($url) < 4 ) {
  session_start();
  if ( !isset($_SESSION[ 'language' ]) && empty($_SESSION[ 'language' ]) ) {
    $_SESSION[ 'language' ] = true;
    redirect();
  }
}

If I skip Header location and just output the switch case I can see that the browser language is fetched, but there are no redirects. Am I on the right track here or should I take a complete different approach?

Post Views: 2

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1 comment

  1. Try the code . use you domain name instead of ‘example.com’ .

     $url = $_SERVER['REQUEST_URI'];
    function redirect() {
      $language = explode( ',', $_SERVER['HTTP_ACCEPT_LANGUAGE'] );
      switch( $language[0] ) {
        case 'sv':


         wp_redirect('example.com/sv/');
          exit();
          break;
        case 'no':

         wp_redirect('example.com/no/');
          exit();
          break;
        case 'da':
         wp_redirect('example.com/da/');
             exit();
          break;
      }
    }

if ( strlen($url) < 4 ) {
  session_start();
  if ( !isset($_SESSION[ 'language' ]) && empty($_SESSION[ 'language' ]) ) {
    $_SESSION[ 'language' ] = true;
    redirect();
  }
}

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