update

data/language/en-US/language.php

@@ -1,5 +1,5 @@
 <?php
-$LANG = [
+return [
     'home' => 'Home',
     'solution' => 'Solution',
     'news' => 'News',

data/language/ko-KR/language.php

@@ -1,5 +1,5 @@
 <?php
-$LANG = [
+return [
     'home' => 'Home',
     'solution' => 'Solution',
     'news' => '뉴스',

data/language/zh-CN/language.php

@@ -1,5 +1,5 @@
 <?php
-$LANG = [
+return [
     "home"                => "主页",
     "solution"            => "方案",
     "news"                => "新闻",

data/language/zh-HK/language.php

@@ -1,3 +1,3 @@
 <?php
 
-include dirname(__FILE__) . "/../zh-TW/language.php";
+return require dirname(__FILE__) . "/../zh-TW/language.php";

data/language/zh-SG/language.php

@@ -1,3 +1,3 @@
 <?php
 
-include dirname(__FILE__) . "/../zh-CN/language.php";
+return require dirname(__FILE__) . "/../zh-CN/language.php";

data/language/zh-TW/language.php

@@ -1,5 +1,5 @@
 <?php
-$LANG = [
+return [
     'home'                => '主頁',
     'solution'            => '方案',
     'news'                => '新聞',

library/lang.class.php

@@ -195,8 +195,7 @@ class Language
         } else {
             $this->language_file = $this->language_root . $this->language_default . '/' . 'language.php';
         }
-        include $this->language_file;
-        $this->LANG = $LANG;
+        $this->LANG = require $this->language_file;
     }
 
     public function get_languages_tags()