<? track_vars ?> and other variables

Anon

Hello!

I am trying to make a simple calculator for an accounting assignment. I have created a form with the following variables:

$gross_margin

$sales

etc....

I am using <? track_vars ?> at the top of my script to pass the variables from the form to the PHP script. Here is the problem: I also need variables listed in the script which are not part of the HTML form. For example:

$gross_margin_percentage = $gross_margin / $sales

But when I have ANY varibles besides those in the HTML form I get parsing errors. How should I go about getting around this?

Seth

Anon

Put the variables that you have in your first php script into hidden form fields, and pass them as well.

srpayne

You mean put them in hidden fields in my HTML form right?

Anon

Yes. But from looking at what you are doing I don't think that's what you need.

You want to allow a user to enter in a couple of values into a form, submit that form, and get an answer correct?

If so then what values do you need to pass from page1 (form) to page2 (calculation) besides the ones that the use enters. All of your calculation values (i.e. Sales Tax or something like that) can all exist in page2.

Anon

Hi,

hidden fields seems the best solution as already been discribed to you. there is another reason not to use track_vars : it's not fully supported by the zend encoder and optimizer.