Event Bookings Approval Link

/*
 * this snippet will create new bookings placeholder to redirect admin to bookings management page
 */
function my_em_booking_approval_link_placeholders($replace, $EM_Booking, $result){
	if ( $result == '#_BOOKINGAPPROVALINK' ) {
		$replace = get_option("siteurl")."/wp-admin/edit.php?post_type=event&page=events-manager-bookings&event_id=".$EM_Booking->get_event()->event_id;
	}
	return $replace;
}
add_filter('em_booking_output_placeholder','my_em_booking_approval_link_placeholders',1,3);