send email to each individual attendee using Attendee Form

<?php

/*
 * This function will send email to each individual attendee using Attendee Form
 *
 * - add form field with the following in your Forms Editor > Attendee Form
 *   - Field Label => Email
 *   - Field ID    => attendee_email
 *
 * How to use this snippet
 *   - using your host cpanel or ftp, go to wp-content > (create this folder) mu-plugins > (create this php file) functions.php
 *   - edit file functions.php
 *   - paste the snippet below
 *
 * Booking Status:
 * 0 = Pending
 * 1 = Approved
 * 2 = Rejected
 * 3 = Cancelled
 * 4 = Awaiting Online Payment
 * 5 = Awaiting Payment
 */

function my_em_custom_email($result, $EM_Booking){
	if ( $EM_Booking->booking_status == 1 ){
		$emails = array();
		$attendees = $EM_Booking->booking_meta['attendees'];
		if ( !empty($attendees) ){
			foreach($attendees as $key => $value) {
				if( is_array($value) ){
					foreach($value as $key2 => $value2) {
						array_push($emails,$value2["attendee_email"]);
					}
				}
			}
			foreach($emails as $key => $value) {
				$EM_Booking->email_send(
				 $EM_Booking->output(get_option('dbem_bookings_email_confirmed_subject')).' - [TEST-ATTENDEE FORM EMAIL]',
				 $EM_Booking->output(get_option('dbem_bookings_email_confirmed_body')),
				 $value
				);
			}
		}//END - if ( !empty($attendees) )

	}
	return $result;
}
add_filter('em_booking_set_status','my_em_custom_email',100,2);