Using Onchange To Call PHP Include And Set Php Variable?

May 14, 2010

I'm building a form in PHP. One of the fields needs to generate information based on another selected input. The first input is for "phase" and based on that I need to count how many entries there are in the database for that phase, then display posible positions(ie 1 per entry including the entry being edited/added). I know that this can't be done with only PHP.

I don't work with Javascript normally so I am struggling. I have read many similar topics, but can't find the answer I am looking for.

I thought that the solution could be to call an include file when a selection for phase is made, but I don't know how to pass the information to the PHP script.

I'd prefer not to have to reload the page or form.

Here's the code that I have so far:

Code:

<html>
<head>
<body>
<form action="edit-category.php?id=<?php echo $id; ?>" method="post"

[Code]....

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