single.phpに記事のカテゴリを表示する

<?php
    $categories = get_the_category();
    if ($categories) :
        foreach ($categories as $category) :
            $category_link = get_category_link($category->term_id);
?>
            <a href="<?php echo esc_url($catgory_link); ?>">
                <?php echo esc_html($category->name); ?>
            </a>
<?php
        endforeach;
    endif;
?>