Using ajax to send form data to php

Question

I want to send form data from ajax to php. My ajax retrieves the form data but it doesnt send it i dont see anything wrong with the code maybe i need a much more professional help. Thanks in advance

HTML5 syntax

<div align="center"><a id="hi">Header</a></div>
<a id="signup" data-add-back-btn="true" style="float:right;" data-icon="arrow-r">Sign- In</a>
</div>

<form class="check-user" action="php/sup.php" method="POST">
        <label>Username</label>
        <input id="Susername" name="username" placeholder="username" type="text" >
    </div>
    <div align="center" data-role="fieldcontain" style="width:100%;overflow:hidden" data-position="static">
        <label>Email</label>
        <input id="Semail" name="email" placeholder="email" type="email" >
    </div>
    <div align="center" data-role="fieldcontain" style="width:100%;overflow:hidden" data-position="static">
        <label>Password</label>
        <input id="Spassword" name="password" placeholder="password" type="password" >
    </div>
    <!---input type="submit" style="visibility:hidden;" id="send"/-->
    </form>

Ajax syntax

$('#signup').live('click', function(){
       //var name = document.getElementById('Susername').value;
       //var email = document.getElementById('Semail').value;
       //var pass = document.getElementById('Spassword').value;
       var that = $('form.check-user'),
       urls = that.attr('action'),
       methods = that.attr('method'),
       data = {};
       that.find('[name]').each(function(index, element) {
        var that = $(this),
        name = that.attr('name'),
        element = that.val();
        alert(name+'='+element+' '+methods);
        data[name] = element;
    });

       $.ajax(
    {
        url: urls,
        type: methods,
        data : data,
        beforeSend: function(response){alert('Sending');},
        success: function(response){ alert('success');},
        error: function(response){alert('failed');},
        complete: function(response){alert('finished');},
    }
    );
       return false;
       });

PHP syntax

session_start();
$name =  $_POST['username'];
$email =  $_POST['email'];
$password =  $_POST['password'];


if(isset($name) && isset($email) && isset($password))
 {

        echo $name;
        $_SESSION['username'] = $name;

  }
 else
 {
die('data not set');
 }

Solution 1

You can use serialize method on form, it will gather everything correct.

$('#signup').live('click', function(){

   var that = $('form.check-user'),
   urls = that.attr('action'),
   methods = that.attr('method'),
   data = that.serialize();


   $.ajax(
{
    url: urls,
    type: methods,
    data : data,
    beforeSend: function(response){alert('Sending');},
    success: function(response){ alert('success');},
    error: function(response){alert('failed');},
    complete: function(response){alert('finished');},
}
);
   return false;
   });

Solution 2

Try this,

$('#signup').live('click', function(){

$.ajax({
            url:’’,//url to submit
            type: "post",
            dataType : 'json',
            data : {
                'Susername' : $('#Susername').val(),
                'Semail' : $('#Semail').val(),
                'Spassword' : $('#Spassword').val()
            },
            success: function (data)
            {

            }
        });

return false;
   });