storing clicked places

Is this possible with PHP?

[sunnydayzrback]

Hi,
I am working on a website where I want the user to click on two different points on a image and then store where he clicked. There will be only 6-8 clickable points(via an image link) on the image . After clicking on the two points the user will be redirected to a different page(where the two points he clicked are shown) based on the choice of his clicks . Is this possible with PHP? If not how do u think this is possible?
Thanks in advance.

[Demaestro]

Have the clicks result in a database entry as well as a page load... just capture and write all the info you want to the db.

[cameraman]

You could use javascript to capture the coordinates in an onclick event. For the first click you could either send it to a php script using AJAX, or just store it in variables. Then on the second click you send the whole thing to a php script for processing and redirection to the appropriate page.

[sunnydayzrback]

There are only 6-8 clickable places on the image. Is there a way through which i can assign a particular id to a clickable place and store it via php?

[trillianjedi]

Is the destination URL of each clicked link unique? If so, you could grab that in your PHP script using:-

$image_clicked = $_SERVER['HTTP_REFERER'];

If it's not unique, you could make it unique with an anchor (#) on each URL, like:-

http://www.example.com/link.html#1
http://www.example.com/link.html#2
http://www.example.com/link.html#3

Then split that inside the callee script:-

$image_clicked = $_SERVER['HTTP_REFERER'];
$image_id = explode("#", $image_clicked);

As mentioned above, if you wrap the callee script into an AJAX request, you can obtain that data without the page reloading. You could store that server-side, or perhaps, given it's only 2 vars you need, store it client-side using cookies.

Sounds like an interesting user-interface being developed ;)

[sunnydayzrback]

Hi Trillian,
Thanks for the prompt reply, but i have a problem. Here first i allow the user to click on two points then if i get the data from the two points in the script i will direct them to another page depending on the points he selected.

So if the home url is [localhost...] then the two image links are [localhost...] and
[localhost...]

but using HTTP_REFERER, I am not able to store these two values (#1 and #2) when i click on them because they are on the same page. Is there any way to do this without linking them(the two image maps) to a different page?

Thankyou.

[trillianjedi]

Ah yes, of course. You're right, anchors wouldn't work - you'd need to use a variable in the URL:-

http://www.example.com?clicked=1

TJ