Stamping Custom WooCommerce Order Meta Data

In this tutorial I will explain how you can read some custom order meta data from WooCommerce (if you have saved it during a checkout) and stamp it in the PDF file.

Lets say you are saving the following custom meta data with the order when a customer does a checkout:

• Course Name
• Course Teacher
• Course School
• Course Start Date
• Course End Date

You want to stamp the above data when this user downloads the PDF file associated with this order.

The following code snippet will do the job:

add_filter('filter_stamper_text_after_replacing_tags', 'woocommerce_custom_stamping', 10, 2);
function stamper_woocommerce_custom_stamping($text_to_stamp, $additional_params)
{
    $order_id = $additional_params['transaction_id'];

    //Read the custom order meta data
    $course_name = get_post_meta($order_id,'Course Name',true);
    $course_teacher = get_post_meta($order_id,'Course Teacher',true);
    $course_school = get_post_meta($order_id,'Course School',true);
    $course_start_date = get_post_meta($order_id,'Course Start Date',true);
    $course_end_date = get_post_meta($order_id,'Course End Date',true);

    //Crete the text to be stamped
    $text_to_stamp = 'Licensed to '.$course_teacher.' - '.$course_name.' - '.$course_school.' - '.$course_start_date.' - '.$course_end_date;

    return $text_to_stamp;
}