add to cart ajax

					<?php
/**
 * Plugin Name: WP Turbo Add to Cart AJAX
 * Description: Adds AJAX functionality to the add to cart button.
 * Version: 1.0.0
 * Author: WP Turbo
 * Author URI: https://wpturbo.dev
 * License: GPL v2 or later
 * Text Domain: wpturbo
 */

// Enqueue JavaScript file for AJAX functionality
function wpturbo_enqueue_scripts() {
    wp_enqueue_script(
        'wpturbo-ajax-cart',
        plugin_dir_url( __FILE__ ) . 'js/ajax-cart.js',
        array( 'jquery' ),
        '1.0.0',
        true
    );

    wp_localize_script(
        'wpturbo-ajax-cart',
        'wpturbo_ajax_cart',
        array(
            'ajax_url' => admin_url( 'admin-ajax.php' ),
            'nonce' => wp_create_nonce( 'wpturbo_ajax_cart_nonce' )
        )
    );
}
add_action( 'wp_enqueue_scripts', 'wpturbo_enqueue_scripts' );

// AJAX Callback function to handle add to cart request
function wpturbo_ajax_add_to_cart() {
    // Verify the AJAX request
    check_ajax_referer( 'wpturbo_ajax_cart_nonce', 'security' );

    // Get the product ID from the AJAX request
    $product_id = intval( $_POST['product_id'] );

    // Add the product to the cart
    $cart_item_key = WC()->cart->add_to_cart( $product_id );

    // Return the cart item key
    if ( $cart_item_key ) {
        echo $cart_item_key;
    } else {
        echo 'error';
    }

    wp_die();
}
add_action( 'wp_ajax_wpturbo_ajax_add_to_cart', 'wpturbo_ajax_add_to_cart' );
add_action( 'wp_ajax_nopriv_wpturbo_ajax_add_to_cart', 'wpturbo_ajax_add_to_cart' );