/** * find language code defined in html * return language code */ public static function get_lang_code($content_dom) { // get html language $e_htmls = $content_dom->find("html"); foreach ($e_htmls as $e_html) { if (isset($e_html->attr["xml:lang"])) { $lang = trim($e_html->attr["xml:lang"]); break; } else { if (isset($e_html->attr["lang"])) { $lang = trim($e_html->attr["lang"]); break; } } } return BasicChecks::cut_out_lang_code($lang); }