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Posted by Christoph Burschka on 12/12/06 08:27
Brad Everman schrieb:
> Suppose I have a bunch of DOM objects (namely images) and want to pass the
> attributes of these DOM objects to a PHP script. What is the easiest way
> to accomplish this? Basically, I have a bunch of images that can be
> manipulated by Javascript and want to determine their final locations
> after the user is done moving them. For instance, one of the attitbutes
> might be dd.elements.circle1.h, where h is the height of the image named
> circle1. This height is set when the page is loaded, but may change as the
> user manipulates the circle. Would I be better off just writing a bunch of
> form data then passing this to PHP? I vaguely remember seeing something
> about manipulating session variables with Javacript.
>
> Thanks for any help.
Communicating between Javascript and the server is best done with an
XMLHttpRequest. Essentially, the script makes a call back to the server
(probably using POST, in your case, and sending the data manipulated
by the user), the server processes it and then returns a response that
the script can parse.
Note that even though it's called "XML", the request and response don't
need to be formatted as XML, which can save a lot of time if you haven't
worked with XML document definitions before.
This is somewhat helpful: http://en.wikipedia.org/wiki/XMLHttpRequest
--
CB
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