Catagory Tree

[AaronL]

Hello, it's me again, I'm stumped.

I have a database table that contains catagories for items. The fields in the table are catagoryid, parentid, and description. I want to make a menu that works like the following

Main menu:
Parent 1
Parent 2
Parent 3

Lets say someone clicks on Parent 1, then I want it to look like
Parent 1
- Child 1
-- A child within a child and so on
- Child 2
- Child 3
Parent 2
Parent 3

I can't for the life of me figure out what the code logic is going to be.

[prabirchoudhury]

Menu table
+--------+--------------+-----------+----------------+
 | catid  | parent_id    | name       | description     |
 +-------+--------------+------------+----------------+
 |  1      | 0          | Parent 1 | description  |
 |  2      | 0          | Parent 2 | description  |
 |  3      | 0          | Parent 3 | description  |
 |  4      | 1          | Child 1   | description  |
 |  6      | 1          | Child 2   | description  |
 |  7      | 1          | Child 3   | description  |
 |  8      | 2          | Child  1  | description  |
 |  9      | 2          | Child  2  | description  |
 |  10     | 3          | Child 1   | description  |
 | 11      | 3          | Child  2  | description  |
+-------+--------------+----------+----------------+
 

1. first in the top level buttons
Main menu:
Parent 1
Parent 2
Parent 3

you make parient buttons where parent_id = 0

2. child buttons for each parent button

when you click on each parent button pass their catid to get child buttons where parent_id = catid (clicked button's catid)

good luck