Get data from ajax array in PHP

Question

I am trying to get ajax array data on PHP side. but I'm having trouble getting the values in PHP. Here's my JavaScript code:

console.log(obj);
$.ajax({
    method: 'POST',
    url: '/inc/sort_answers.php',
    data: obj,
    success: function(data) {
        if ( data.indexOf('success') != -1) {
            window.onbeforeunload = null;
            location.replace('/sort-results/');
        } else {
            alert(data);
        }
    },

And output of this js code is:

I am using this code to get values in PHP:

$unsorted = json_decode(stripslashes($_POST['unsorted']));

But it gives me an error.

What's the error? It may also help to see the actual content of the obj variable, instead of an image of its console representation — Rory McCrossan
– Rory McCrossan, Commented Jul 19, 2016 at 19:15
Have you watched the AJAX request / response in the browser's developer tools? Have you included the jQuery library in the project? Are there any errors reported? Are you running this on a web-server? — Jay Blanchard
– Jay Blanchard, Commented Jul 19, 2016 at 19:16
stripping slashes out of json is going to corrupt your json... — Marc B
– Marc B, Commented Jul 19, 2016 at 19:17
and there's no such thing as an "ajax array". ajax is a communications protocol which boils down to being a simple http request. you have a JS array/object. — Marc B
– Marc B, Commented Jul 19, 2016 at 19:19

ThijmenDF · Accepted Answer · 2016-07-22 08:51:06Z

1

The best way to do this is by converting your obj to JSON, then decode it on the PHP side.

Sending an object from Javascript to PHP

Javascript:

var enc = JSON.stringify(obj);
$.ajax({
  method: 'POST',
  url: '/inc/sort_answers.php',
  data: {obj: enc},
  success: function(data) {
    // Do stuff with data.
});

PHP:

$data = json_decode($_POST['obj'],true);
// Do stuff with $data

Sending objects from PHP to Javascript:

PHP:

$data = array("bla"=>"first entry","arr"=>array("test","more tests"));
echo json_encode($data);

Javascript:

var obj;
$.ajax({
  method: 'GET',
  url: '/inc/sort_answers.php',
  success: function(data) {
    obj = JSON.parse(data);
});

Here are a few links about JSON in php and javascript

JSON decoding for PHP

JSON encoding for PHP

JSON decoding for JS

JSON encoding for JS

answered Jul 22, 2016 at 8:51

ThijmenDF

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