add_filter( 'woocommerce_get_price_html', 'wpcb_hide_price_on_sold_out', PHP_INT_MAX, 2 );
if ( ! function_exists( 'wpcb_hide_price_on_sold_out' ) ) {
/**
* wpcb_hide_price_on_sold_out.
*
* @see https://wpcodebook.com/snippets/hide-price-for-sold-out-products-in-woocommerce/
*/
function wpcb_hide_price_on_sold_out( $price_html, $product ) {
return ( ! $product->is_in_stock() ? '' : $price_html );
}
}
The function checks if the current product is in stock; if it’s not in stock (i.e., not instock or onbackorder) – returns an empty string; otherwise – returns unchanged price html.