multilanguage/MultiLanguageHelper.php at master · webvimark/multilanguage · GitHub

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<?php
namespacewebvimark\behaviors\multilanguage;

useYii;
useyii\helpers\Url;
useyii\web\Cookie;

class MultiLanguageHelper
{

/**
 * catchLanguage
 *
 * Changing language depending on the $_GET['_language'] parameter
 *
 * Used in base Controller in init() function
 *
 * @stolen from http://www.yiiframework.com/wiki/294/seo-conform-multilingual-urls-language-selector-widget-i18n/
 */
publicstaticfunctioncatchLanguage()
	{
if ( php_sapi_name() == 'cli' )
 {
return;
 }

if ( isset($_POST['_language_selector']) )
 {
$lang = $_POST['_language_selector'];
$MultilangReturnUrl = $_POST[$lang];
 Yii::$app->controller->redirect($MultilangReturnUrl);
 Yii::$app->end();
 }

$availableLanguages = array_keys(Yii::$app->params['mlConfig']['languages']);

if ( isset($_GET['_language']) && in_array($_GET['_language'], $availableLanguages) ) // From URL
 {
 Yii::$app->language = $_GET['_language'];

static::saveLanguage(Yii::$app->language);

 }
elseif ( Yii::$app->session->has('_language') ) // From session
 {
 Yii::$app->language = Yii::$app->session->get('_language');

static::saveLanguage(Yii::$app->language);

 }
elseif ( Yii::$app->response->cookies->has('_language') ) // From cookies
 {
 Yii::$app->language = Yii::$app->response->cookies->get('_language')->value;

static::saveLanguage(Yii::$app->language);

 }
else// From browser settings
 {
 Yii::$app->language = Yii::$app->request->getPreferredLanguage($availableLanguages);

static::saveLanguage(Yii::$app->language);
 }

	}

/**
 * Save language in session and cookie if already stored value differs from provided language
 *
 * @param string $language
 */
protectedstaticfunctionsaveLanguage($language)
	{
if ( Yii::$app->session->get('_language') != $language )
 {
 Yii::$app->session->set('_language', $language);
 }

if ( !Yii::$app->response->cookies->get('_language') || Yii::$app->response->cookies->get('_language')->value != $language )
 {
$cookie = newCookie([
'name' => '_language',
'value' => $language,
'expire' => time() + (3600*24*30), // 30 days
 ]);

 Yii::$app->response->cookies->add($cookie);
 }
	}


/**
 * createMultilanguageReturnUrl
 *
 * @param string $lang
 * @return string
 *
 * @stolen from http://www.yiiframework.com/wiki/294/seo-conform-multilingual-urls-language-selector-widget-i18n/
 */
publicstaticfunctioncreateMultilanguageReturnUrl($lang)
	{
if (count($_GET) > 0)
 {
$arr = $_GET;
$arr['_language']= $lang;
 }
else
$arr = array('_language'=>$lang);

if (Yii::$app->requestedRoute != Yii::$app->errorHandler->errorAction)
 {
$arr[0] = '';
return Url::to($arr);
 }
else
 {
if ( isset( $_SERVER['REQUEST_URI'], $_GET['_language'] ) )
 {
$url = ltrim($_SERVER['REQUEST_URI'], '/'.$_GET['_language']);
return'/' . $lang .'/'. $url;
 }
else
return Yii::$app->homeUrl;
 }
	}

}