在数据库中存储商店开放和关闭时间的最佳方法是什么,以及如何计算PHP中的时间？
我想出了这个表设计:
+----+---------+----------+-----------+------------+
| id | shop_id | week_day | open_hour | close_hour |
+----+---------+----------+-----------+------------+
| 1 | 3 | 1 | 15:00:00 | 23:00:00 |
| 2 | 3 | 2 | 15:00:00 | 23:00:00 |
| 3 | 3 | 3 | 18:00:00 | 02:00:00 |
| 4 | 3 | 4 | 18:00:00 | 02:00:00 |
| 5 | 3 | 5 | 18:00:00 | 03:00:00 |
+----+---------+----------+-----------+------------+
+------------+---------+------+-----+---------+----------------+
| Field | Type | Null | Key …