Adding a passed parameter to a image pathway

Question

I am using dreamweaver CS5 and I have a web page that passes a 4 letter code to another web page that contains images. I want to include the 4 letter code in the pathway of the image shown on the web page, is this possible?

For example, lets say a person uses a pick list and picks "TFFA" and hits submit. TFFA is passed to another web page. All of this works fine. Now what I want to do is add "TFFA" to the pathway for the image. So in the example below you will see TFFA is actually part of the image name. All of the images are named the same with the exception of the first 4 letters which is dependent on the value a person picks from the previous web page.

Thanks

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<span class="style16">Point 01</span><a href="images/TFFA01_2009.jpg" title=""><img src="TFFA01_2009_Thumb.jpg" width="160" height="106" alt="Flower" /></a>

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Point 01

David_Powers · Accepted Answer

There are ~150 pictures, but the page only displays 15 pictures depending on what code is picked (15 pictures per code with 10 possible codes). I am pretty new to this and I am not sure what you mean by "building a control panel"

Thanks for the help.

As John says, this is easily done with PHP. To ensure that the value passed through the URL is valid (and not an attempt to probe the file system), you would need to create an array of acceptable values at the top of the page. Assuming the variable is passed on the end of the URL as ?cat=TFFA (or whatever value is chosen), it would look like this:

<?php

$valid = array('TFFA', 'LAVO', 'CRLA', 'LABE');

if (in_array($_GET['cat'], $valid)) {

$prefix = $_GET['cat'];

} else {

$prefix = 'TFFA';

}

?>

This checks whether the value passed through the URL is in the $valid array. If it is, it's assigned to $prefix. If it's not, $prefix is given a default value to prevent errors.

Then, in the body of the page, the value of $prefix is used like this:

<a href="images/<?php echo $prefix; ?>01_2009.jpg" title=""><img src="<?php echo $prefix; ?>01_2009_Thumb.jpg" width="160" height="106" alt="Flower" /></a>

sudarshan.t · Answer

Now what I want to do is add "TFFA" to the pathway for the image.Can you please be more descriptive? I don't quite understand 'pathway for the image' bit.

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