Passing Variables via A HREF

kbc1

Hi all,

I am stuck!

I have a page which when you select an item from a list box, the page posts a productid to itself and the page redraws and list the details linked to that productid which come from a database. This is simple enough and is working great, however, when the page is first displayed, I also have thumbnail images of these products and I want to be able to click an image and allow the page to re-draw itself like it does with the list box.

My problem it, it is not working!!! Could someone please take a moment to look at my code and maybe point my issue out?

<?php

$productselected = false;
            $rangeid= $_GET['rangeid'];
$productid = $_GET['productid'];

// Get the posted variables from the form ($_POST['selecteditem'] is my list box!!)

if ($_POST['selecteditem']) {
     $productselected = true;
                 $productid = $_POST['productid'];
                 $rangeid= $_POST['rangeid'];
}

//I would then have my HTML code here

Now comes my code and images..

	$sqlquery = "SELECT productid, image FROM tblproducts WHERE rangeid = $rangeid";
	$dataresult = mysql_query($sqlquery);
	while ($datarow = mysql_fetch_array($dataresult)) {
		$productid = $datarow['productid'];
		$image = $datarow['image'];

	echo "	<div id=\"smallimgbox\">	
				<a href=\"productdetails.php?productid=$productid&rid=$rangeid\"><img src=\"$imageref\" /></a>
			</div>";

The page posts but does not redraw itself displaying all of the product details like it does when i post my list box.

Please suggest..?

Thanks in advance

bubblenut

I see nothing wrong with your code. If you view the html source of the page with images on does the link look correct? Also, you can use [man]print_r[/man] to vire the contents of the $_GET array to try to narrow down where the error is comming from.

Roger_Ramjet

Your code only processes POST but an image link send a GET.

Easiest way is to change it to process $_REQUEST['var'] this will then pick up both POST and GET vars.

BTW, it may sort-of-work using if ($POST['selecteditem']) {
but you should be writing if (isset(($POST['selecteditem'])) {

Also, I can tell that you have omitted the most important parts of this script. Why?

Where do you use $productselected??
And if yoy don't use it then why does it exist?
I know that this must be the important part, cos when you process a GET it is set to false = your page does not redraw, but when you process a POST it is set to true and your page does redraw

I just wish youse would all learn that it is you that have the problem you cannot fix. So you deciding where the problem is, and what parts of your code we need to see is about as dumb as it gets. If you knew what part of your code was wrong then presumably you would be able to fix it yourself.