Processing Jquery Ajax form submit with php

Question

Recently I've been struggling with Jquery and Ajax while trying to submit forms with them. I have a very simple form with a username field and password field as well as a submit button. What the form is supposed to do is that once the form is submitted the info would be sent by Ajax to a php file which then adds the said form values to a database. What I am struggling with is how to get the values from Ajax to php. Here is my code:

$('#form').submit(function(){

var username = $('#username').val();
var password = $('#password').val();

var dataString = 'uname=' + username + '&passw=' + password;


$.ajax({

    type: "POST",
    url:'check.php',
    data: dataString,

    success: function(data){
        alert(data);//only for testing purposes
    }
});

What eludes me is how can I get the dataString from this with php?

Answer 1

PHP file:

<?php
    print_r($_POST);
?>

jQuery part:

var dataString = 'uname=555';
$.ajax({
    type: "POST",
    url:'check.php',
    data: dataString,

    success: function(data){
        alert(data);//only for testing purposes
    }
});

brings me:

So my only guess would be that you are failing to fetch your data in javascript.

One more idea. Replace the type with "GET". Then in php file write a line:

echo $_SERVER["REQUEST_URI"];

What does it give you in the alert box? :)