I'm using this code to generate the WhatsApp share button:<a href=whatsapp://send?text=<?php echo get_the_title(); ?> <?php echo get_post_permalink(); ?>>Share via Whatsapp</a>I want to add also ?utm_source=whatsapp in the URL.How can I achieve this? 
Adding UTM parameters in WhatsApp share button, how?
wordpress;utm parameters