Using ajax in wordpress

Using Ajax in WordPress

To use AJAX in WordPress, the following steps are mentioned below-

Enqueue the jQuery library

WordPress comes with jQuery pre-installed, so you don’t need to add it manually. However, you need to make sure that it’s loaded before your custom JavaScript code. You can enqueue it by adding the following code to your theme’s functions.php file:


  1. <?php
  2. function my_enqueue_scripts() {
  3.     wp_enqueue_script('jquery');
  4. }
  5. add_action('wp_enqueue_scripts', 'my_enqueue_scripts');
  6. ?>

Create a JavaScript file:
Create a JavaScript file where you will write your AJAX code. You can create this file in your theme’s directory and enqueue it using the following code:


  1. <?php
  2. function my_enqueue_scripts() {
  3.     wp_enqueue_script('my-ajax-script', get_template_directory_uri() . '/js/my-ajax-script.js', array('jquery'), '1.0', true);
  4. }
  5. add_action('wp_enqueue_scripts', 'my_enqueue_scripts');
  6. ?>

Write the AJAX code:
In your JavaScript file, you can write the AJAX code using jQuery’s $.ajax() function. Here’s an example code to get you started:


  1. <script>
  2. jQuery(document).ready(function($) {
  3.     $('#my-button').click(function() {
  4.         $.ajax({
  5.             url: ajaxurl,
  6.             type: 'POST',
  7.             data: {
  8.                 action: 'my_action',
  9.                 some_data: 'Some data to send to the server'
  10.             },
  11.             success: function(response) {
  12.                 console.log(response);
  13.             }
  14.         });
  15.     });
  16. });
  17. </script>

Create the AJAX handler:
In your theme’s functions.php file, you need to create a function to handle the AJAX request. This function should check the action parameter in the AJAX data and perform the necessary action. Here’s an example code:


  1. <?php
  2. function my_ajax_handler() {
  3.     $some_data = $_POST&#91;'some_data'&#93;;
  4.     // Do something with $some_data
  5.     echo 'Response from the server';
  6.     wp_die();
  7. }
  8. add_action('wp_ajax_my_action', 'my_ajax_handler');
  9. add_action('wp_ajax_nopriv_my_action', 'my_ajax_handler');
  10. ?>

Note that the wp_ajax_my_action and wp_ajax_nopriv_my_action actions are used to handle authenticated and non-authenticated AJAX requests respectively.


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