Here is the code;

We use wp_list_categories(); function when we calling our categories. But if we change this function we can change our category listing. Just copy and paste this function in your sidebar.php file and show your categories in two columns.

<?php
$cats = explode("<br />",wp_list_categories('title_li=&echo=0&depth=1&style=none'));
$cat_n = count($cats) - 1;
for ($i=0;$i<$cat_n;$i++):
if ($i<$cat_n/2):
$cat_left = $cat_left.'<li>'.$cats[$i].'</li>';
elseif ($i>=$cat_n/2):
$cat_right = $cat_right.'<li>'.$cats[$i].'</li>';
endif;
endfor;
?>
<ul class="left">
<?php echo $cat_left;?>
</ul>
<ul class="right">
<?php echo $cat_right;?>
</ul>

After that we have to change our style.css for left and right terms. her is the code;

.right {float:left; width:140px;}
.left {float:left; width:140px;}

That’s All. Have a nice day!

The Original Post: Blog-Oh-Blog