Placeholder to display attendee form

/*
 * This custom placeholder will display the attendees using Attendee Form
 * where attendee_name is the attendee form field id
 */
add_filter('em_event_output_placeholder','em_event_output_placeholder_attendee',1,3);
function em_event_output_placeholder_attendee($replace, $EM_Event, $result){

	if ( $result == '#_CUSTOMBOOKINGATTENDEES' ) {
		$EM_Bookings = $EM_Event->get_bookings();
		$replace = "";
		foreach( $EM_Bookings as $EM_Booking){

			$attendees = $EM_Booking->booking_meta['attendees'];
			foreach($attendees as $key => $value) {
				foreach($value as $key_attendee => $value_attendee) {
					$replace .= $value_attendee["attendee_name"].'<br/>';
				}
			}

		}
	}

	return $replace;
}