WordPress函数：wp_list_categories（分类列表）

&lt;?php <a href="https://www.wpdaxue.com/tag/wp_list_categories" title="查看与【wp_list_categories】相关的文章" target="_blank" rel="noopener">wp_list_categories</a>( $args ); ?&gt;

<?php $args = array(
	'show_option_all'    => '',
	'orderby'            => 'name',
	'order'              => 'ASC',
	'style'              => 'list',
	'show_count'         => 0,
	'hide_empty'         => 1,
	'use_desc_for_title' => 1,
	'child_of'           => 0,
	'feed'               => '',
	'feed_type'          => '',
	'feed_image'         => '',
	'exclude'            => '',
	'exclude_tree'       => '',
	'include'            => '',
	'hierarchical'       => 1,
	'title_li'           => __( 'Categories' ),
	'show_option_none'   => __('No categories'),
	'number'             => null,
	'echo'               => 1,
	'depth'              => 0,
	'current_category'   => 0,
	'pad_counts'         => 0,
	'taxonomy'           => 'category',
	'walker'             => null
); ?>

<ul>
<?php wp_list_categories('orderby=name&include=3,5,9,16'); ?> 
</ul>

<ul>
<?php wp_list_categories('orderby=name&show_count=1&exclude=10'); ?> 
</ul>

<ul>
<?php wp_list_categories('exclude=4,7&title_li='); ?>
</ul>

<ul>
<?php wp_list_categories('include=5,9,23&title_li=<h2>' . __('Poetry') . '</h2>' ); ?> 
</ul>

<ul> 
<?php wp_list_categories('orderby=id&show_count=1&use_desc_for_title=0&child_of=8'); ?>
</ul>

<?php
$variable = wp_list_categories('echo=0&show_count=1&title_li=<h2>Categories</h2>');
$variable = preg_replace('~\((\d+)\)(?=\s*+<)~', '$1', $variable);
echo $variable;
?>

<ul>
<?php wp_list_categories('orderby=name&show_count=1&feed=RSS'); ?>
</ul>

<ul>
<?php wp_list_categories('orderby=name&show_count=1&feed_image=/images/rss.gif'); ?>
</ul>

<?php 
//list terms in a given taxonomy using wp_list_categories (also useful as a widget if using a PHP Code plugin)
 
$taxonomy     = 'genre';
$orderby      = 'name'; 
$show_count   = 0;      // 1 for yes, 0 for no
$pad_counts   = 0;      // 1 for yes, 0 for no
$hierarchical = 1;      // 1 for yes, 0 for no
$title        = '';
 
$args = array(
  'taxonomy'     => $taxonomy,
  'orderby'      => $orderby,
  'show_count'   => $show_count,
  'pad_counts'   => $pad_counts,
  'hierarchical' => $hierarchical,
  'title_li'     => $title
);
?>
 
<ul>
<?php wp_list_categories( $args ); ?>
</ul>

<?php
// get the category IDs assigned to post
$categories = wp_get_post_categories( $post->ID, array( 'fields' => 'ids' ) );
// separator between links
$separator = ', ';
 
if ( $categories ) {
 
	$cat_ids = implode( ',' , $categories );
	$cats = wp_list_categories( 'title_li=&style=none&echo=0&include=' . $cat_ids );
	$cats = rtrim( trim( str_replace( '<br />',  $separator, $cats ) ), $separator );
 
	// display post categories
	echo  $cats;
}
?>

 li.categories { ... }  /* outermost list item */
 li.cat-item { ... }
 li.cat-item-7 { ... }  /* category ID #7, etc */
 li.current-cat { ... }
 li.current-cat-parent { ... }
 ul.children { ... }