What is this kind of javascript? And Help with AJAX request.

Question

I recently asked this question:

http://stackoverflow.com/questions/694849/dynamically-query-a-database-to-check-for-value/694860#694860

And I got an awesome and informative answer. But whenever I search on Google to find out more about "Ajax Requests" the codes never look similar to the one provided. Also I have used another tutorial that used this, is it a shorthand? Or is it jQuery or what?

That horrible confusion, is messing up my ability so solve the following problem:

Sending the value of the field to the PHP script. I tried using something along the lines of::

$value = $GET["inputname"];

but that does not seem to work. Could you please help? I am very adept in PHP but I am very new to javascript. THANKS!

Answer 1

$.get(url,{},verifyDb);

is the jQuery ajax Get method. You can pass a parameter like this:

$.get(url,{inputname: "value goes here"},verifyDb);

$ is a shorthand for the jQuery object. I would familiarize yourself with the jQuery docs.

Answer 2

Maybe I'm an idiot but

$value = $GET["inputname"];

Should be:

$value = $_GET["inputname"];

Also,

But whenever I search on Google to find out more about "Ajax Requests" the codes never look similar to the one provided.

You need to be googling on 'jquery ajax requests'

Answer 3

The problem could be that by default Ajax requests are usually POST requests, not GET. So, in your PHP script, looking for $_GET['blah'] ain't gonna work. Try $_POST['blah'] and let us know if you find the vars you're looking for.