Re: [PHP] related products, how to's best practices

From: Ajai Khattri (ajai_at_bway.net)
Date: 12/04/03 

Date: Thu, 4 Dec 2003 12:29:56 -0500
To: php-general@lists.php.net

On Thu, Dec 04, 2003 at 03:43:53PM +0000, Jon Bennett wrote:

> Would I be right in thinking that php alone can't change the content of
> a dropdown once the browser has loaded the file without a page refresh
> ??? In which case I need to source out some javascript, anyone got
> anything that might help me (code, tute, urls etc) as I'm not having
> much luck with google ??

I have done this in JavaScript - but I dont have any code handy.

Basically you will need to pre-generate a series of JavaScript arrays for each
category of product at the top of the web page. Then you have a JavaScript
event handler in the category pulldown that changes the product pulldown to a
different array whenever the category changes (use something like onClick or
onChange or a similar relevant event).

Works pretty well - I once worked on a project which pulled data from Access
via ODBC (I was coding in ASP - bleh! Never again... ;-) and generated the web
page with the arrays and JavaScript functions at the top to handle the
switching of the pulldowns. 

-- 
Aj.
Sys. Admin / Developer

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