gx

@@ -117,7 +117,9 @@ class ProjectCountryLogic extends BaseLogic
     protected function countrySortFormat($country_sort){
         $webLanguageModel = new WebLanguage();
         $idArr = $webLanguageModel->selectField(['id'=>['not in',explode(',',$country_sort)]],'id');
-        $countryStr = $country_sort.','.implode(',',$idArr);
-        return $countryStr;
+        if(!empty($idArr)){
+            $country_sort = $country_sort.','.implode(',',$idArr);
+        }
+        return $country_sort;
     }
 }