How Do I Automatically Update My WooCommerce Cart?

When it comes to updating your WooCommerce cart, there are a few different ways that you can go about it – either manually or by setting up an automatic update system. If you sell products that have a lot of variants (such as color or size), then setting up an automatic update system is probably the way to go so that your customers always have the most accurate and current information about what’s available.

The process for doing this is actually pretty straightforward:

1. Install the WooCommerce Cart Updater plugin.
2. Create a new file called “cart-update.
3. In that file, paste in the following code:

<?php
/**
* Automatically update WooCommerce cart
*
* @param int $product_id Product ID
* @param int $quantity Quantity
* @return void
*/
function WooCommerce_auto_update_cart( $product_id, $quantity ) {
// Get cart contents
$cart = WC()->instance()->cart;
// Find the product in the cart and update it's quantity
foreach ( $cart->get_cart() as $cart_item_key => $values ) {
$item = $values['data'];
if ( $item->get_id() == $product_id ) {
$values['quantity'] = $quantity; }} 
 
$cart->set_cart( $item ); }
add_action( 
   'woocommerce_before_calculate_totals', 
   'woocommerce_auto_update_cart', 10, 2 );
?>

This code will automatically update the quantity of a product in your WooCommerce cart when the stock level changes. You can also use this code to update other data in the cart, such as the price or title of a product.

If you want to test this code, you can use the following shortcode:

[woocommerce_stock=10]

This shortcode will set the stock level of all products in your WooCommerce store to 10.