Add Custom Labels to WooCommerce Products Easily

Code

<?php
// Add custom labels to WooCommerce products

// Hook to display custom labels on WooCommerce products
add_action('woocommerce_before_shop_loop_item_title', 'wp_dudecom_display_custom_product_label', 10);

function wp_dudecom_display_custom_product_label() {
    global $product;

    // Example: Add a 'New' label to products added in the last 30 days
    $post_date = get_the_date('Y-m-d', $product->get_id());
    $newness_days = 30; // Number of days to consider a product as 'New'

    if ((time() - strtotime($post_date)) < ($newness_days * 24 * 60 * 60)) {
        echo '<span class="wp-dudecom-product-label new-label">New</span>';
    }

    // Example: Add a 'Sale' label to products on sale
    if ($product->is_on_sale()) {
        echo '<span class="wp-dudecom-product-label sale-label">Sale</span>';
    }
}

// Enqueue custom styles for product labels
add_action('wp_enqueue_scripts', 'wp_dudecom_enqueue_custom_styles');

function wp_dudecom_enqueue_custom_styles() {
    wp_add_inline_style('woocommerce-general', '
        .wp-dudecom-product-label {
            position: absolute;
            top: 10px;
            left: 10px;
            background-color: #ff0000;
            color: #ffffff;
            padding: 5px 10px;
            font-size: 12px;
            font-weight: bold;
            z-index: 100;
        }
        .wp-dudecom-product-label.new-label {
            background-color: #00ff00;
        }
        .wp-dudecom-product-label.sale-label {
            background-color: #ff0000;
        }
    ');
}
?>