Retrieving information from an ajax array in PHP

Question

Retrieving information from an ajax array in PHP

I am currently attempting to retrieve an array of data using AJAX on the PHP side, but I am facing difficulties in accessing the values in PHP. Here is my JavaScript code snippet:

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);
        }
    },

The output of this JavaScript code snippet can be seen here:

https://i.stack.imgur.com/M41lt.jpg

This is the PHP code I am utilizing to fetch the values:

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

However, I am encountering an error when executing this code.

javascript php jquery json ajax

Answer 1

Answer №1

If you want to transfer data between JavaScript and PHP, one effective method is to convert your object to JSON format before decoding it on the PHP side.

Transferring an object from Javascript to PHP

In JavaScript:

var encodedData = JSON.stringify(obj);
$.ajax({
  method: 'POST',
  url: '/inc/sort_answers.php',
  data: {obj: encodedData},
  success: function(response) {
    // Process the response data.
});

In PHP:

$decodedData = json_decode($_POST['obj'], true);
// Use $decodedData for further processing

Transferring objects from PHP to JavaScript:

In PHP:

$dataToSend = array("key" => "value", "numbers" => array(1,2,3));
echo json_encode($dataToSend);

In JavaScript:

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

For more information on working with JSON in PHP and JavaScript, check out these helpful links:

JSON decoding for PHP

JSON encoding for PHP

JSON decoding for JS

JSON encoding for JS

Answer 2

If you want to transfer data between JavaScript and PHP, one effective method is to convert your object to JSON format before decoding it on the PHP side.

Transferring an object from Javascript to PHP

In JavaScript:

var encodedData = JSON.stringify(obj);
$.ajax({
  method: 'POST',
  url: '/inc/sort_answers.php',
  data: {obj: encodedData},
  success: function(response) {
    // Process the response data.
});

In PHP:

$decodedData = json_decode($_POST['obj'], true);
// Use $decodedData for further processing

Transferring objects from PHP to JavaScript:

In PHP:

$dataToSend = array("key" => "value", "numbers" => array(1,2,3));
echo json_encode($dataToSend);

In JavaScript:

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

For more information on working with JSON in PHP and JavaScript, check out these helpful links:

JSON decoding for PHP

JSON encoding for PHP

JSON decoding for JS

JSON encoding for JS

Retrieving information from an ajax array in PHP

Answer №1

Transferring an object from Javascript to PHP

Transferring objects from PHP to JavaScript:

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