WooCommerce: Hide Price if Value is 0

gistfile1.txt

// Add this code to your child theme's functions.php file

add_filter( 'woocommerce_get_price_html', 'hide_zero_price', 10, 2 );

/**
 * Hide price if it is zero
 *
 * @param string $price The price (HTML formatted).
 * @param WC_Product $product The product object.
 * @return string
 */
function hide_zero_price( $price, $product ) {

    // If the product price is zero or null
    if ( 0 == $product->get_price() || '' == $product->get_price() ) {

        // Return an empty string instead of the price
        return '';
    }

    // If the price is not zero, return it as is
    return $price;
}