/**
* Set current language and locale
*
* @param string $inputLang Value of HTML tag "lang" (en|ru|en-US|ru-RU|...)
* @return string Locale code on success
*/
public static function setLanguage($inputLang)
{
//--- Convert lang to standard form:
$lang = self::isLanguageAcceptable($inputLang);
//--- If lang is not acceptable set default language (the first of $languages):
if ($lang === false) {
$lang = self::getLanguageCode(self::$languages[0]);
}
//--- Set locale:
self::$locale = setlocale(LC_ALL, [$lang, $lang . '.UTF-8']);
//<-- ["ru_RU", "ru_RU.UTF-8"]
//--- Store current language:
self::$language = $lang;
//self::$inputLanguage = $inputLang;
//putenv("LANG=" . self::$language);
return self::$language;
}
/**
* Returns the code of current language (selected by user or default)
*
* @param boolean $shortForm TRUE is 2-symbols form (en|ru|...).
* FALSE is 5-symbols form (en-US|ru-RU|...).
* @param array $acceptableLanguages List of acceptable languages.
* The first in list is the default.
*
* @return <i>string</i> The code of current language.
* Can be 2-symbols form (en|ru|...) or 5-symbols form (en-US|ru-RU|...) depending on the $shortForm value.
* @see $shortForm
*/
public static function getLanguage($shortForm = null, $acceptableLanguages = null)
{
if ($shortForm === null) {
$shortForm = self::$shortForm;
}
if (is_array($acceptableLanguages)) {
self::$languages = $acceptableLanguages;
}
//--- Return the stored language:
if (!self::$language) {
//--- If is set $_COOKIE's languge:
if ($_COOKIE[self::$cookieLanguageKey]) {
self::setLanguage($_COOKIE[self::$cookieLanguageKey]);
} else {
//--- Define language accepted by user's browser:
self::setLanguage(self::getUserAcceptLanguage());
}
}
//--- Short form:
if ($shortForm) {
return substr(self::$language, 0, 2);
}
//--- Standard form:
return self::$language;
}
