sending data via url

[mikster]

ok origally i was dynamically changing an image using form data i collected via $_post and sent via url to an image processing script the script would then return the altered image onto the oringal page which had been freshed when the form was posted.

now ive changed my design and i want to collect data from items not in a form ie clicking on images, as these are not in a form i cannot use the $_post method to collect the data and send via url, how would i collect the data now?

cheers

mike

[devinemke]

use $GET instead of $POST

[mikster]

how would i collect the data to use in $GET? with $POST i got the data from fields in the form when it was submitted, how would i get a value for what image they have clicked?

[devinemke]

tack the vars on the URL string like this:

http://www.mikster.com/index.php?image_id=123

then in index.php:

echo $_GET['image_id']; // ouputs "123"

you should really read up on Predefined variables.

[mikster]

i know how to pass it thru url and get it with $GET but i need to get the right value into the url, which is what i cant figure out, b4 i would get the value from the posted form with $post but now say they click the red image, i want it to change the main images src to something like image.php?colour=1

but instead of one i need it 2 b a variable which is set depending on which image they click

then in my image.php script i would test to see which number had been passed and change the main image accordingly