我在数据库sql中有一个表,如下所示,我想根据id和多少记录(生成)显示它
+-------------------------------+
| ID | Parent_ID |
+-------------------------------+
| 1 | 0 |
+-------------------------------+
| 2 | 1 |
+-------------------------------+
| 3 | 1 |
+-------------------------------+
| 4 | 2 |
+-------------------------------+
| 5 | 2 |
+-------------------------------+
| 6 | 2 |
+-------------------------------+
| 7 | 2 |
+-------------------------------+
| 8 | 3 |
+-------------------------------+
| 9 | 5 |
+-------------------------------+
| 10 | 7 |
+-------------------------------+
| 11 | 10 |
+-------------------------------+
| 12 | 10 |
.................................
The list goes on..
所以,如果我想选择ID = 2并记录从第1代到第4代,结果会是这样的
+-------------------------------+
| ID | Parent_ID |
+-------------------------------+
| 2 | 1 | -> 1st generation
+-------------------------------+
| 4 | 2 | -> 2nd generation
+-------------------------------+
| 5 | 2 | -> 2nd generation
+-------------------------------+
| 6 | 2 | -> 2nd generation
+-------------------------------+
| 7 | 2 | -> 2nd generation
+-------------------------------+
| 10 | 7 | -> 3rd generation
+-------------------------------+
| 12 | 10 | -> 4th generation
.................................
这一代并不总是从头开始,所以我从任何一代开始选择位置,任何想法如何在php或php laravel中使用MySQL数据库做到这一点?