[php+mysql] best way to integrate a tree category menu base on db?

Question

Hi all,
I have a products catalog where all products are organized in
categories.
The category structure is something similar to this:
category 1
subcategory 1.1
sub-subcategory 1.1.1
sub-subcategory 1.1.2
sub-subcategory 1.1.3
sub-subcategory 1.1.4
sub-subcategory 1.1.5
subcategory 1.2
subcategory 1.3
category 2
subcategory 2.1
subcategory 2.2
sub-subcategory 2.2.1
sub-subcategory 2.2.2
sub-subcategory 2.2.3
sub-subcategory 2.2.4
subcategory 2.3
...and so on...
In general, I have 3 category levels.
I manage these catagories with only one table using self
foreign keys.
Now I need to add a tree menu that will reflect the above
category
structure.
I use php + mysql to store the tables (products and
categories.
I found several javascript samples that allow you to do
something similar
but with static data.
I'm searching for a tree menu that is easily customizable and
that can use
dynamic data from mysql db.
Is there a tutorial or smple that would do the trick?
TIA very much!
tony ;).

Answer 1

The page I'm trying to create is here www.hollisterairshow.com/plan-results.php and the questionnaire is here www.hollisterairshow.com/helpusplan.php .
I went ahead and created recordsets using advanced recordsets and these seem to be working, here's a sample SQL
SELECT *
FROM plan
WHERE Saturday = 'Saturday' AND plan.howArriving = 'Auto'
I created a recordset for each combination of day and transportation mode - six in all
This selected the correct records.
To display the count of how many records selected I then used in DW Insert/Data Objects/ Display Record Count/Total Records which generated the following code:
<?php echo $totalRows_rsSatAuto ?>
This worked OK - not elegant but OK and I repeated it for each combination of Day and Transportation mode!!
So there are two problems I'm having:
I know I can select the records I want but how do I display the sum of the column containing "How many in your party" - i.e. in the PHP code generated above what do I replace $totalRows_rsSatAuto with?
There are two questions using radio buttons where I'd like to display the count and % for each option selected. I can select all records for these questions but what code do I put to sum the number of selections for each option and what code do I put to calculate the percentage
I understand the arithmetic involved which is pretty simple but it's the mechanics of coding that has me stumped. It would really help if you could give me a sample for say the "Are you camping overnight" question which has a "Yes/No" option only. In my mundane way I would create two recordsets, one for "Yes" and one for "No", and use the same technique I describe above for counting Total Records in each recordset, but then I'm stuck with how do I calculate and display the percentages. I must be missing something very obvious as I'm sure there just has to be a more elegant solution.
Thanks so much for your continued interest.
Tony