/*
 Theme Name:   Bricks Child Theme
 Theme URI:    https://bricksbuilder.io/
 Description:  Use this child theme to extend Bricks.
 Author:       Bricks
 Author URI:   https://bricksbuilder.io/
 Template:     bricks
 Version:      1.1
 Text Domain:  bricks
*/
<?php
/**
 * Attach a file to an email
 * 
 * @param array $attachments
 * @param WPBS_Email $email
 * @param WPBS_Form $form
 * @param WPBS_Calendar $calendar
 * @param int $booking_id
 * 
 */
add_filter('wpbs_form_mailer_attachments', function($attachments, $email, $form, $calendar, $booking_id){
    if($email->get('id') == 12){
        $attachments[] = '/path/to/home/ketytrav/istra-holiday.com/file.pdf';
    }
    return $attachments;
}, 50, 5)