修复正则数据错误

application/controllers/information.php

@@ -1055,7 +1055,7 @@ class Information extends CI_Controller
       preg_match_all('^<!--@FEEDBACK-CITY-LIST_(.*)@-->^', '<div><!--@FEEDBACK-CITY-LIST_Bangkok,Hanoi@--></div>', $feedback_city_array);
       if (!empty($feedback_city_array)) {
         foreach ($feedback_city_array[0] as $index => $tag_name) {
-          $city_name_string = $feedback_array[1][$index];
+          $city_name_string = $feedback_city_array[1][$index];
           $city_name_list = explode(',', $city_name_string);
           $feedback_city_list = [];
           foreach ($city_name_list as $index => $city_name) {