Mostra arquivo separado por ano/mês

snipet_ano_mes.php

<ul>
<?php
global $wpdb;
$limit = 0;
$year_prev = null;
$months = $wpdb->get_results("SELECT DISTINCT MONTH( post_date ) AS month ,	YEAR( post_date ) AS year, COUNT( id ) as post_count FROM $wpdb->posts WHERE post_status = 'publish' and post_date <= now( ) and post_type = 'post' GROUP BY month , year ORDER BY post_date DESC");
foreach($months as $month) :
	$year_current = $month->year;
	if ($year_current != $year_prev){
		if ($year_prev != null){?>
		
		<?php } ?>
	
	<li class="archive-year"></ul><ul class="sd" style="width:20%;margin:0 10px;background:Red;float:left;text-align:center;"><h3><a href="<?php bloginfo('url') ?>/<?php echo $month->year; ?>/"><?php echo $month->year; ?></a></h3></li>
	
	<?php } ?>
	<li><a href="<?php bloginfo('url') ?>/<?php echo $month->year; ?>/<?php echo date("m", mktime(0, 0, 0, $month->month, 1, $month->year)) ?>"><span class="archive-month"><?php echo date_i18n("F", mktime(0, 0, 0, $month->month, 1, $month->year)) ?></span></a></li>
	
	<?php $year_prev = $year_current;

if(++$limit >= 18) { break; }

endforeach; ?>
</ul>