show real names in lottery history tab

<?php
/**
 * Lottery history tab template
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/single-product/tabs/lottery-history.php
 *
 */

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

global $woocommerce, $post, $product;

$lottery_winers = get_post_meta($post->ID, '_lottery_winners');
$users_names = '';
$use_answers = wc_lottery_use_answers( $post->ID );
$use_ticket_numbers = get_post_meta( $post->ID , '_lottery_use_pick_numbers', true );
$answers = maybe_unserialize( get_post_meta( $post->ID, '_lottery_pn_answers', true ) );
$date_format = get_option( 'date_format' );
$time_format = get_option( 'time_format' );

?>

<h2><?php echo esc_html( __( 'Lottery History', 'wc-lottery-pn' ) ); ?></h2>


<?php if(($product->is_closed() === TRUE ) and ($product->is_started() === TRUE )) : ?>

    <p><?php _e('Lottery has finished', 'wc-lottery-pn') ?></p>
    <?php if ($product->get_lottery_fail_reason() == '1'){
         _e('Lottery failed because there were no minimal number of participants', 'wc-lottery-pn');
    } else{

        if ( count($lottery_winers) > 1 ) { ?>

           <p><?php _e('Lottery winners are', 'wc-lottery-pn') ?>: <?php foreach ($lottery_winers as $winner_id) {
            if( intval( $winner_id ) > 0) {
                    $users_names .= "<span>";
                    $users_names .= get_userdata($winner_id)->first_name.' '.get_userdata($winner_id)->last_name;
                    $users_names .= "</span>, ";
                }
            } ?><?php echo rtrim( $users_names , ', '); ?></p>

        <?php } elseif( count($lottery_winers) === 1 ) {
            $winner = reset($lottery_winers);

            if ( ! empty ( $winner ) ) { ?>
            <p><?php _e('Lottery winner is:', 'wc-lottery-pn') ?> <span><?php echo get_userdata($winner)->first_name ?> <?php echo get_userdata($winner)->last_name ?></span></p>
        <?php }
        }
    } ?>

<?php endif; ?>

<?php if ( 'yes' === get_post_meta( $post->ID, '_lottery_instant_win', true ) ){

            $lottery_instant_instant_winners = get_post_meta( $post->ID, '_lottery_instant_instant_winners');
            $prizes = wc_lottery_get_instant_winning_prizes( $post->ID );
            printf( _n( "This lottery has %d instant prize winner" , "This lottery has %d instant prize winners", count( $lottery_instant_instant_winners ) , 'wc-lottery-pn' ) , count( $lottery_instant_instant_winners ) ) ;
            echo '<ol class="lottery-instant-winners">';
            if ( $lottery_instant_instant_winners ){
                    foreach ($lottery_instant_instant_winners as $key => $winner) {
                        echo "<li>";
                        esc_html_e(  $winner['prize'] );
                        echo ' - ';
                        _e('prize winner is:', 'wc-lottery-pn');
                        echo ' <span>' . get_userdata( $winner['user_id'] )->first_name .' '. get_userdata( $winner['user_id'] )->last_name .'</span>';
                        echo ', ';
                        _e('ticket number:', 'wc-lottery-pn');
                        echo ' <span>' .  $winner['ticket']  .'</span>';
                        echo "</li>";

                    }
                }

            echo '</ol>';

        }
        ?>

<table>
    <thead>
        <tr>
            <th><?php _e('Date', 'wc-lottery-pn') ?></th>
            <th><?php _e('User', 'wc-lottery-pn') ?></th>
            <?php if ($use_ticket_numbers === 'yes' ) :?>
                <th><?php _e('Ticket number', 'wc-lottery-pn') ?></th>
            <?php endif; ?>
            <?php if ($use_answers === true && 'yes' === get_option('lottery_answers_in_history', 'yes')  && ( 'no' === get_option('lottery_answers_in_history_finished', 'no') || $product->is_closed() === TRUE ) ) :?>
                <th><?php _e('Answer', 'wc-lottery-pn') ?></th>
            <?php endif; ?>
        </tr>
    </thead>
    <?php
        $lottery_history = $product->lottery_history();

        if( $lottery_history ) {

            foreach ($lottery_history as $history_value) {

                echo "<tr>";
                echo "<td class='date'>".date_i18n( $date_format, strtotime( $history_value->date )).' '.date_i18n( $time_format, strtotime( $history_value->date ))."</td>";
                echo $history_value->userid ? "<td class='username'>". ( get_userdata($history_value->userid) ? get_userdata($history_value->userid)->first_name.' '. get_userdata($history_value->userid)->last_name : '' ) ."</td>" : '';

                if ($use_ticket_numbers === 'yes' ) {
                    echo "<td class='ticket_number'>" . apply_filters( 'ticket_number_display_html' , $history_value->ticket_number, $product ) . "</td>";
                }

                if ( $use_answers === true && 'yes' === get_option('lottery_answers_in_history', 'yes')  && ( 'no' === get_option('lottery_answers_in_history_finished', 'no') || $product->is_closed() === TRUE ) ){
                    $answer = isset( $answers[$history_value->answer_id] ) ? $answers[$history_value->answer_id] : false;
                    echo "<td class='answer'>";
                    echo $answer !== true && isset( $answer['text'] ) ? $answer['text'] : "" ;
                    echo "</td>";
                }

                echo "</tr>";
            }

        }
    ?>
    <tr class="start">
            <?php

            $lottery_dates_to = $product->get_lottery_dates_from();


            if ($product->is_started() === TRUE ){
                echo '<td class="date">'.date_i18n( $date_format,  strtotime( $lottery_dates_to )).' '.date_i18n( $time_format,  strtotime( $lottery_dates_to )).'</td>';
                echo '<td class="started">';
                esc_html_e( 'Lottery started', 'wc-lottery-pn' );
                echo '</td>';

            } else {
                echo '<td class="date">'.date_i18n( $date_format,  strtotime( $lottery_dates_to )).' '.date_i18n( $time_format,  strtotime( $lottery_dates_to )).'</td>';
                echo '<td class="starting">';
                esc_html_e( 'Lottery starting', 'wc-lottery-pn' );
                echo '</td>' ;
            }?>
    </tr>
</table>