jQuery ajax function to call php script which returns a value?

Question

Thank you for looking at my issue, hopefully you can help me out as I'm an not well versed in writing JavaScript functions and am relatively new to using jQuery...

Anyways, I need a way to use jQuery's ajax call to asynchronously call a php script which will return a value and update the value in a header element.

Anyone know of the proper way to go about doing this?

Read a jQuery tutorial: docs.jquery.com/Tutorials:Getting_Started_with_jQuery or any other tutorial concerning jQuery and Ajax (Google is your friend). — Felix Kling
– Felix Kling, Commented May 17, 2010 at 19:07

Rixius · Accepted Answer · 2010-05-17 19:11:06Z

4

jQuery:

$.post('url_to_script',{"anyData": "that is needed"}, function(data){
    $('#headertarget').text('data');
});

PHP:

$anyData = $_POST['anyData'];
function getAnswer ($inp){
    //logic goes here
    return "a string of some sort";
}
echo getAnswer($anyData);
exit;

It will put any text you send back to the client into the heading element.

answered May 17, 2010 at 19:11

Rixius

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2 Comments

Rixius Over a year ago

and yes, google is your friend. I also suggerst checking out Javascript: the missing manual. It teaches the basics of Javascript, as well as jQuery.

Rixius Over a year ago

Welcome, That's the way I started learning JS and PHP, just please check out that book.

microspino · Accepted Answer · 2010-05-17 19:30:06Z

1

For the specific subject you said I would go here. The same website LearningJQuery has tons of other nice examples.

I'd like to add also:

Visual Jquery
JSbin to try and practice with jQuery in a browser
Firebug I hope i use Firefox and Firebug togheter during development: Firebug add a console and dom, net, inspection tools (and a lot more actually).
jQuery enlightement that is a good and very cheap e-book I enjoyed a lot
Lot of tutorials from the jQuery official documentation with a big list of other resources.

answered May 17, 2010 at 19:30

microspino

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