Passing Javascript Variable to PHP using Ajax

Question

I'm working on an existing script at the moment which uses Ajax, something I've never worked with before. I have a variable set in my javascript file which gets its value from an input field on my page. I need to use Ajax to post this to my PHP page only I've no idea where to start,

Im not sure what code you would need to see, but My javascript/AJAX code is, the variable I need to pass is 'var credoff'

$(".getPoint").click(function () {
    var theid = $(this).attr("id");
    var onlyID = theid.split("_");
    var onlyID = onlyID[1];
    var credoff = parseInt($(this).children('input.credoff:hidden').val());

    $.ajax({
        url: 'do.php',
        type: 'POST',
        data: "userID=" + onlyID,
        success: function (data) {
            if (data != "success1" && data != "success5") {
                $("#" + theid).text(data);
            } else {

                $("#thediv_" + onlyID).fadeOut("slow");
                $('#creditsBalance').fadeOut("slow");
                newbalance = parseInt($('#creditsBalance').text());

Wouldit have to be in this format?

data: "userID=" + onlyID,
"credoff=" + credoff

silex · Accepted Answer · 2011-05-25 20:44:31Z

5

...
data: {
    userId: onlyID,
    credoff: credoff
},
...

answered May 25, 2011 at 20:44

silex

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3 Comments

silex Over a year ago

Np. Also look at this useful documentation: api.jquery.com/jQuery.ajax and devirtuoso.com/2009/07/…

Liam Over a year ago

Sorry silex, would it have to be in the following format? data: "userID=" + onlyID, "credoff=" + credoff

silex Over a year ago

Yes, it would. data: "userID=" + onlyID + "&credoff=" + credoff,

Corey · Accepted Answer · 2011-05-25 20:49:57Z

2

Or you can do this:

data: "userID=" + onlyID + "&credoff=" + credoff

don't forget the ampersand! &

answered May 25, 2011 at 20:49

Corey

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