最新記事に日付を付与
<?php
$lastposts = get_posts('numberposts=5&orderby=post_date');
foreach($lastposts as $post) :
setup_postdata($post);
?>
<li><a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
<?php the_title(); ?></a> (<?php the_time('y-m-d'); ?>)</li>
<?php endforeach; ?>
