修改

@@ -360,7 +360,7 @@ class Question extends Api
             //日
             foreach ($DateDay as $k => $v) {
                 //指定日起止时间戳
-                $YMD = implode('-', $v['date']);
+                $YMD = implode($v['date'], '-');
                 dump($YMD);
                 $start_time = mktime(0, 0, 0, date('m'), date('d'), date('Y'));
                 $end_time = mktime(0, 0, 0, date('m'), date('d') + 1, date('Y')) - 1;