How to Add Custom Input Field in WooCommerce Product Page

Adding custom input fields to your WooCommerce product page can significantly enhance the shopping experience by allowing customers to personalize their orders. Whether you’re selling customizable products, gathering specific information, or offering additional services, these fields can be invaluable. This comprehensive guide will walk you through the process of adding custom input fields to your WooCommerce product pages effectively.

Why Add Custom Input Fields?

Adding custom fields to your WooCommerce products can offer numerous benefits:

• **Personalization**: Allow customers to personalize their products, enhancing user experience and satisfaction.
• **Data Collection**: Gather necessary information directly from the product page, such as custom text, dates, or additional preferences.
• **Increased Sales**: Offering customization options can lead to higher conversion rates and increased sales.

Prerequisites

Before diving into the process, ensure you have:

• A WordPress site with WooCommerce installed and activated.
• Basic understanding of PHP and WordPress file structure.
• Access to your theme files via FTP or a child theme.

Step-by-Step Guide to Adding Custom Input Fields

Step 1: Create a Child Theme

It’s critical to use a child theme when making modifications to your site to ensure updates to your main theme don’t overwrite your changes. If you haven’t created a child theme yet, follow these steps:

1. Create a New Folder: In your `wp-content/themes` directory, create a folder for your child theme (e.g., `your-theme-child`).

2. Add a Stylesheet: Inside your child theme folder, create a `style.css` file with the following content:

 /* Theme Name: Your Theme Child Template: your-theme */ 

3. Activate the Child Theme: Go to your WordPress dashboard, navigate Learn more about How To Set Up Shipping In Woocommerce to Appearance > Themes, and activate your child theme.

Step 2: Add the Custom Input Field

To add a custom input field to your product page, you’ll need to modify your theme’s `functions.php` file. Here’s how to do it:

1. Open your child theme’s `functions.php` file.

2. Add the following code to create and display the custom input field on the product page:

 add_action('woocommerce_before_add_to_cart_button', 'custom_product_text_field'); 

function custom_product_text_field() {

echo ‘

‘;

}

Step 3: Save the Custom Input Field Data

To ensure the data from the custom input field is saved when a product is added to the cart, add the following code to your `functions.php` file:

 add_filter('woocommerce_add_cart_item_data', 'save_custom_product_text_field', 10, 2); 

function save_custom_product_text_field($cart_item_data, $product_id) {

if (isset($_POST[‘custom_input’])) {

$cart_item_data[‘custom_input’] = sanitize_text_field($_POST[‘custom_input’]);

}

return $cart_item_data;

}

Step 4: Display the Custom Input Field Data in the Cart

To display the custom data in the cart, use the following code:

 add_filter('woocommerce_get_item_data', 'display_custom_product_text_field_cart', 10, 2); 

function display_custom_product_text_field_cart($item_data, $cart_item) {

if (isset($cart_item[‘custom_input’])) {

$item_data[] = array(

‘key’ => __(‘Custom Input’, ‘your-text-domain’),

‘value’ => wc_clean($cart_item[‘custom_input’]),

);

}

return $item_data;

}

Step 5: Save the Custom Field Data to Orders

Finally, ensure the custom data is saved to the order details:

 add_action('woocommerce_checkout_create_order_line_item', 'save_custom_product_text_field_order', 10, 4); 

function save_custom_product_text_field_order($item, $cart_item_key, $values, $order) {

if (isset($values[‘custom_input’])) {

$item->add_meta_data(__(‘Custom Input’, ‘your-text-domain’), $values[‘custom_input’]);

}

}

Conclusion

By following this guide, you can successfully add custom input fields to your WooCommerce product pages, enhancing your site’s functionality and customer satisfaction. This customization not only provides a better user experience but also opens up new opportunities for product personalization, leading to increased sales.

Remember, while adding custom fields is a powerful feature, it’s essential to test thoroughly to ensure everything works seamlessly on your WooCommerce site. Happy customizing!