diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index 5bdad290..14bb6294 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -43,6 +43,16 @@ use mt\Dailyselection;
 use models\Transaction;
 use models\BcOrder;
 
+if (!function_exists('array_column')) {
+    function array_column($arr2, $column_key) {
+        $data = [];
+        foreach ($arr2 as $arr) {
+            $data[] = $arr[$column_key];
+        }
+        return $data;
+    }
+}
+
 class ShopController extends BaseAuthedController
 {