Conditional custom output around products sale price and regular price

Question

I\'m trying to work on a custom conditional output where when a product loop is found with sales price, it adds a class to the sale price tag. If there\'s only regular price, it

Answer 1

This hook is a filter with 2 variables ($price and $instance) and you return $price instead of echo $price). You could try to use it this way:

add_filter('woocommerce_sale_price_html','price_custom_class', 10, 2 ); 
function price_custom_class( $price, $product ){ 
    if (isset($product->sale_price)) {
        $price = '<del class="strike">'.woocommerce_price( $product->regular_price ).'</del> 
        <ins class="highlight">'.woocommerce_price( $product->sale_price ).'</ins>';
    }
    else
    {
        $price = '<ins class="highlight">'.woocommerce_price( $product->regular_price ).'</ins>';
    }
    return $price;
}

This hook is for sale price normally.

Reference: woocommerce_sale_price_html

For regular price, you have woocommerce_price_html filter hook:

add_filter( 'woocommerce_price_html', 'price_custom_class', 10, 2 );
function price_custom_class( $price, $product ){ 
    // your code
    return $price;
}

Reference: woocommerce_price_html

Answer 2

You need filter hook here, not action hook, to hook a function or method to a specific filter action. change to

add_filter('woocommerce_sale_price_html','price_custom_class');