Creating JSON data using PHP and parsing it using jQuery

Question

I am using a PHP script to create JSON data. It looks like this:

{\"Id\":0}

Now if I put that into a file and then load it using ajax it\'s

Answer 1

Doctypes belong on HTML documents, not JSON.

Try something like this in your PHP file (and only this)

<?php
header('Content-Type: application/json');
?>
{"Id":0}

Given what you have posted, I can't see any reason to even involve PHP. I'm guessing you've only posted a very simple example. Should it become more complex, involving server-side processing, data retrieval, etc, use PHP's json_encode(), for example

<?php
header('Content-Type: application/json');
$data = array(
    'Id'  => 0,
    'foo' => $someOtherComplexVariable
);
echo json_encode($data);
exit;

Answer 2

use jquery's parseJSON
e.g.

success: function(data) {
    data = jQuery.parseJSON(data);
 $('#result').html('#Id=' + data.Id);
}

Answer 3

In your error function use this and check what data is being returned from the server.

error: function(jqXHR, textStatus, errorThrown) {
   $('#result').html(textStatus + ' | ' + errorThrown + ' | ' + jqXHR.responseText);
   alert(jqXHR.responseText);
}

You will know where exactly it is going wrong. The data type and the special characters. Set the content type to application/json and encode your json string using json_encode(). Also, you don't need the doctypes.