如何将.xml从jQuery传递给PHP？

Question

I'm using jQuery.ajax() to submit a form on my website. I get an .xml response and I want to send it to a .php file. I've tried using another jQuery.ajax() function:

<script type="text/javascript">
  $(document).ready(function() {
    $('#form').submit(function(e) {
      e.preventDefault();

      $.ajax({
        type: 'POST',
        url: 'myURL',
        data: $('#form').serialize(),
        success: function(xml)
        {
          $.ajax({
            type: 'POST',
            url: 'saveData.php',
            data: {
              xml: $(xml),
            },
            success: function(data) {
              $('#output').html(data);
            }
          });
        }
      });
    });
  })
</script>

but I faced "Illegal invocation" error. So I added processData: false to my inner AJAX function. Now I get another error: Undefined index: xml in... Here is my PHP code:

<?php
  $xml = $_POST['xml'];
?>

How to manage this issue?

Answer 1

What you can try is specify in the first $.ajax call that you are going to receive an XML using dataType :

$.ajax({
    type: 'POST',
    url: 'myURL',
    dataType: 'xml,
    data: $('#form').serialize(),
    success: function(xml) (...)

But I have a question. Why using an ajax into an other ajax call ? If both are made to the same server, it dont seems legit.