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app/Http/Controllers/api/Issue.php

@@ -108,6 +108,10 @@ class Issue extends BaseController
             'end_time' => strtotime($data1->end_time),
             'winnings' => $arr,
         ];
+
+        $data['aa'] = bcsub($data['end_time'], $data['current_time'], 0);
+
+
         return $this->success($data);
     }