resync variable product in WooCommerce

gistfile1.php

<?php

/***********************************************************************************************
*  This function will automatically resync variable product prices in case the prices don't show
*  on the catalogue pages anymore.
*
*  Simply place it in functions.php
***********************************************************************************************/

add_filter( 'woocommerce_get_price_html', 'resync_variable_product', 100, 2 );
function resync_variable_product( $price, $product ){
   
	if (empty($price)){
		error_log('resyncing variable product ' .$product->get_id());
		WC_Product_Variable::sync($product->get_id());
	}

	return $price;
}