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@@ -985,7 +985,7 @@ class Index extends Api
             $second_arr2[$k] = Db::name('class_con')->where(['class_ids' => $v['id']])->select();
             if (!empty($second_arr2[$k])) {
                 $second_arr[$k] = $second_arr2[$k];
-                foreach ($second_arr as $k3 => $v3) {
+                foreach ($second_arr[$k] as $k3 => $v3) {
                     $second_arr3[$k3]['xid'] = $v3['id'];
                     $second_arr3[$k3]['title'] = $v3['class_con'];
                 }