Автор: simatic007

Данный код уберет численные значения товара на складе, оставив просто instock

<?php
include( 'wp-load.php' );
// Setup your custom query
$args = [
    'post_type' => ['product'/*, 'post', 'page'*/],
    'posts_per_page' => -1,
    'post_status' => 'publish'
];
$loop = new WP_Query( $args );

while ( $loop->have_posts() ) : $loop->the_post();
	global $post;	
	$product = wc_get_product( $post->ID );		
	if($product->get_stock_quantity()>0 && $product->get_manage_stock() == 'yes' && $post->post_name != 'bra'){
		echo 'Update stock for simple product ID: '.$post->ID.' slug: '.$post->post_name.' Title: '.$product->get_title().' Old quantity: '.$product->get_stock_quantity().'<br>';
		// Using WC setters
        $product->set_manage_stock(false);
        $product->set_stock_quantity(0);
        $product->set_stock_status('instock');
        
        // Save Product
        $product->save();
	}
	 if ($product->get_type() == "variable" && $post->post_name != 'bra') {		
        $variations = $product->get_available_variations();
		foreach($variations as $variation){
			 $variation_id = $variation['variation_id'];
			 $variation_obj = new WC_Product_variation($variation_id);			 
			 if($variation_obj->get_stock_quantity()>0 && $variation_obj->get_manage_stock() == 'yes'){
				echo 'Update stock for variation product ID: '.$variation_id .' slug: '.$post->post_name.' Title: '.$variation_obj->get_title().' Old quantity: '.$variation_obj->get_stock_quantity().'<br>';
				// Using WC setters
				$variation_obj->set_manage_stock(false);
				$variation_obj->set_stock_quantity(0);
				$variation_obj->set_stock_status('instock');

				// Save Product
				$variation_obj->save();
			}
		}
    }	
	 
endwhile; wp_reset_query(); // Remember to reset 
echo 'stock update done';
?>

Создается отдельный php файл, к которому напрямую идет обращение из адресной строки браузера.

WC()->cart->get_cart_contents_count() – it allows to get a number of cart items including their quantity counts. For example, if you have 10 snowboards and 1 avocado toast in the cart, this method will return 11! You can see it yourself if you open this method in WooCommerce source code. It just gets the whole cart array from WC()->cart->get_cart() and then for each item it gets its quantity parameter.
count( WC()->cart->get_cart() ) – this implementation actually returns the number of unique products in the cart, one per product.