Submit and change information without refreshing the page
Create a smooth and dynamic user experience with AJAX
Configure the actions and callbacks for AJAX
With that in mind, the very first thing to do is set up the infrastructure to make these AJAX calls. Whether in a custom plugin or just the functions.php file, you’ll need to define and configure a few settings to set up where these calls should go. It’s also generally best practice to keep your AJAX scripts in a separate file, which will then need to be enqueued on the site in general (or at least the specific pages you need it to run).
Watch for triggers in the JS
On some events, like form submissions, you may want to prevent the default behavior, but that can be achieved with a single line of code. Then you’ll loop through the HTML to grab all the data you need, put them into variables, and send them back in a special POST format via the settings you configured in the section above. The AJAX call has a specific functionality that doesn’t refresh the page like a normal POST functionality, but instead runs all on the same page without reloading.
Receive the response back in PHP
What you do, again, is built right into PHP. Just treat it like you’re submitting a form. Want to add rows to the database? Update a value? All of that is perfectly fine.
Measure success back in the JS
Need help getting started on your own AJAX project, or want to see some more practical examples? Don’t hesitate to reach out to us for a free quote! We’d be delighted to help you turn your website dream into a reality.