php - Wordpress: div enclosing each group of three posts -

in wordpress, want have div wrapping around every 3 posts (because posts in grid, 3 per line, , want each line have uniform height "read more" buttons line @ bottom - http://restartcomputer.com/category/products/mac-products/). figured out (logically) how - outlined in accepted answer of question: php loop: add div around every 3 items syntax

however, i've tried , cannot code work. divs not added, @ all. here code:

if (have_posts()) :      $counter = 1; ?>     <div class="entries-wrapper">     <?php while (have_posts()) : the_post(); ?>          //post stuff          <?php if ($counter % 3 == 0) { ?>             </div><div class="entries-wrapper">         <?php }         $counter += 1; ?>     <?php endwhile; ?>     </div>      //some more code  <?php endif; wp_reset_query(); ?> 

any idea why?

you have not entered script (line 4):

if (have_posts()) :      $counter = 1; ?>     <div class="entries-wrapper">     <?php while (have_posts()) : the_post(); ?>          //post stuff          <?php if ($counter % 3 == 0) { ?>             </div><div class="entries-wrapper">         <?php }         $counter += 1; ?>     <?php endwhile; ?>     </div>      //some more code  <?php endif; wp_reset_query(); ?> 

i did similar in theme align posts side side:

        <?php if ( have_posts() ) : ?>                  <?php $col = 1; ?>                  <?php /* start loop */ ?>                 <?php while ( have_posts() ) : the_post(); ?>                          <?php if($col == 1) echo "<div class='row'>"; ?>                         <div class="post col<?php echo $col; ?>" id="post-<?php echo the_id(); ?>">                         <?php                                 /* include post-format-specific template content.                                  * if want override in child theme, include file                                  * called content-___.php (where ___ post format name) , used instead.                                  */                                 get_template_part( 'content', get_post_format() );                         ?>                         <?php (($col==1)?$col=2:$col=1); ?>                         </div>                         <?php if($col == 1) echo "</div>"; ?>                  <?php endwhile; ?>                   <?php kubrick_paging_nav(); ?>          <?php else : ?> 

can try moving div within while statement.