/**
* Given the language key $lang, will return a link for switching to $lang
* remaining on the current page path.
*
* The current page path is taken from the LocaleLinkService.
*
* If the multi-language support is disabled this method will only return the
* current page path.
*
* @param $lang (String)
* @return (String)
*/
function langswitch($lang)
{
// The page path (an absolute path, starting with '/')
$pagePath = LocaleLinkService::getPagePath();
// Check if the multi-language support is enabled
if (!LocaleService::isMultilangEnabled()) {
return $pagePath;
}
// Empty lang
if (empty($lang)) {
return $pagePath;
}
// Is it the default lang?
if ($lang === LocaleService::getDefaultLang()) {
return $pagePath;
}
// Get the list of available languages
$availableLangs = LocaleService::getAvailableLangs();
// Isn't the language supported?
if (!in_array($lang, $availableLangs)) {
return $pagePath;
}
return "/{$lang}{$pagePath}";
}
