Cleanest Way to Select Every Second Element in a Loop?

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What’s the quickest and easiest way to select every second element in the loop?

At the moment I’m using this strange method:

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<ul>
<?php $k = 1; ?>
  <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
    <li class="<?php if($k%2 == 0) echo 'last'; ?>"><?php the_content(); ?></li>
<?php $k++; ?>
<?php endwhile; ?>
<?php endif; ?>
</ul>

Can’t use nth-child since IE doesn’t support it and CSS3 PIE isn’t playing nice with my site at the moment.

Post Views: 2

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1 comment

  1. I wouldn’t consider that strange :). WordPress uses a similar method to apply the ‘alternate’ class to every other row in the tables on the admin page, something like:

    <ul>
  <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
     <?php $class = (empty($class) ? 'class="alternate"' : '');?>
     <li <?php echo $class; ?> ><?php the_content(); ?></li>
  <?php endwhile; ?>
  <?php endif; ?>
</ul>