Add phone number to the data array sent to Zapier when a new PMPro order is made.

my_pmproz_added_order_data_add_phone.php

<?php
/**
 * Add phone number to the data array sent to Zapier
 * when a new PMPro order is made.
 *
 * This gist requires the pmpro-zapier plugin.
 * For information on how to add code snippets: https://www.paidmembershipspro.com/how-to-add-code-to-wordpress/
 */
function my_pmproz_added_order_data_add_phone( $data, $order, $user_id ) {
	$data['phonenumber'] = get_user_meta( $user_id, 'pmpro_bphone', true );
	return $data;
}
add_filter( 'pmproz_added_order_data', 'my_pmproz_added_order_data_add_phone', 10, 3 );