Wordpress - Display Loop's Post Category Link - Ex: display category link for an article

wordpress-display-post-category-link.php

<?php

//Note Wordpress only uses the first category applied to a post.
$category = get_the_category();

if (!empty($category)) {
    echo 'Category: <a class="post-category" href="' . esc_url(get_category_link($category[0]->term_id)) . '">' . esc_html($category[0]->name) . '</a>';
}