Wordpress kategori fonsiyonuna class ekleme

<?php
$args = array(
'show_count' => 1,
'depth' => 1,
'hide_empty' => 0,
'orderby' => 'count',
'exclude_tree' => '1',
'order' => 'ASC',
'title_li' => ''
);
wp_list_categories($args);
?>

<li class="cat-item cat-item-2"><a href="siteadı.com" title="kategori açıklaması">Adana</a> (1)
</li>

<li class="cat-item cat-item-2"><a href="siteadı.com" title="kategori açıklaması">Adana</a><span>(1)</span>
</li>

add_filter('wp_list_categories', 'cat_count_span');
function cat_count_span($links) {
  $links = str_replace('</a> (', '</a> <span>(', $links);
  $links = str_replace(')', ')</span>', $links);
  return $links;
}

add_filter('wp_list_categories', 'cat_count_span');
function cat_count_span($links) {
  $links = str_replace('</a> (', '</a> <span>(', $links);
  $links = str_replace(')', ')</span>', $links);
  return $links;
}

<?php
function categories_postcount_filter ($variable) {
   $variable = str_replace('(', '<span> ', $variable);
   $variable = str_replace(')', ' </span>', $variable);
   return $variable;
}
add_filter('wp_list_categories','categories_postcount_filter');
?>