Как мне добавить ссылку в этом php?

<p>
<?php printf( __( "Hi there. Your recent purchase for %s was successful. A confirmation PDF is attached and your order details are shown below for your reference. 
<br>
Have you heard about our upcoming CD release? Pre-order your copy now by clicking <a href='path/to/file'>here</a>, 'woocommerce' ), get_option( 'blogname' ) ); ?>