开发支持WooCommerce简单/可变产品的库存状态查询短代码

Alright, let's build that custom shortcode you need for WooCommerce. This will handle both simple and variable products exactly as you described, checking stock status properly:

Here's the complete code you can use:

function wc_product_stock_status_shortcode() {
    global $product;

    // Exit if we're not on a valid product page
    if ( ! is_a( $product, 'WC_Product' ) ) {
        return '';
    }

    $stock_status = 'Out of stock';

    // Handle simple product stock check
    if ( $product->is_type( 'simple' ) ) {
        if ( $product->get_stock_quantity() > 0 && $product->is_in_stock() ) {
            $stock_status = 'In stock';
        }
    }

    // Handle variable product stock check (check all variations)
    elseif ( $product->is_type( 'variable' ) ) {
        $variations = $product->get_available_variations();
        foreach ( $variations as $variation ) {
            $variation_product = wc_get_product( $variation['variation_id'] );
            // If any variation has stock, update status and break the loop
            if ( $variation_product->get_stock_quantity() > 0 && $variation_product->is_in_stock() ) {
                $stock_status = 'In stock';
                break;
            }
        }
    }

    // Return formatted status with a CSS class for easy styling
    return '<p class="product-stock-status">' . esc_html( $stock_status ) . '</p>';
}
add_shortcode( 'product_stock_status', 'wc_product_stock_status_shortcode' );

How it works: #

• We start by targeting the current product on the page using the global $product object.
• Default status is set to "Out of stock" — we only override this if we find available inventory.
• For simple products: We check both the stock quantity and the product's official in-stock flag (covers edge cases where stock management is enabled but quantity is set to 0).
• For variable products: We loop through all available variations. As soon as we find one with active stock, we update the status and stop checking (saves unnecessary processing).
• The output is wrapped in a paragraph with a custom CSS class (product-stock-status) so you can style it to match your store's design.

How to use: #

1. Add this code to your child theme's functions.php file, or use a custom code snippet plugin (like Code Snippets) to avoid losing changes when your theme updates.
2. On any product page (in the description, short description, or even a custom product tab), insert the shortcode [product_stock_status] where you want the stock status to appear.

Quick customization tip: If you want to use different wording (like "Available" instead of "In stock"), just edit the string values in the code to match your preferred text.

内容的提问来源于stack exchange，提问作者Garconis