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wp_list_categories [ WordPress Function ]

wp_list_categories ( $args = '' )
Parameters:
  • (string|array) $args Optional. Override default arguments.
Returns:
  • (string) HTML content only if 'echo' argument is 0.
Defined at:



Display or retrieve the HTML list of categories.

The list of arguments is below: 'show_option_all' (string) - Text to display for showing all categories. 'orderby' (string) default is 'ID' - What column to use for ordering the categories. 'order' (string) default is 'ASC' - What direction to order categories. 'show_count' (bool|int) default is 0 - Whether to show how many posts are in the category. 'hide_empty' (bool|int) default is 1 - Whether to hide categories that don't have any posts attached to them. 'use_desc_for_title' (bool|int) default is 1 - Whether to use the description instead of the category title. 'feed' - See {@link get_categories()}. 'feed_type' - See {@link get_categories()}. 'feed_image' - See {@link get_categories()}. 'child_of' (int) default is 0 - See {@link get_categories()}. 'exclude' (string) - See {@link get_categories()}. 'exclude_tree' (string) - See {@link get_categories()}. 'echo' (bool|int) default is 1 - Whether to display or retrieve content. 'current_category' (int) - See {@link get_categories()}. 'hierarchical' (bool) - See {@link get_categories()}. 'title_li' (string) - See {@link get_categories()}. 'depth' (int) - The max depth.

Source


<?php
function wp_list_categories$args '' ) {
    
$defaults = array(
        
'show_option_all' => '''show_option_none' => __('No categories'),
        
'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' => '''current_category' => 0,
        
'hierarchical' => true'title_li' => __'Categories' ),
        
'echo' => 1'depth' => 0,
        
'taxonomy' => 'category'
    
);

    
$r wp_parse_args$args$defaults );

    if ( !isset( 
$r['pad_counts'] ) && $r['show_count'] && $r['hierarchical'] )
        
$r['pad_counts'] = true;

    if ( 
true == $r['hierarchical'] ) {
        
$r['exclude_tree'] = $r['exclude'];
        
$r['exclude'] = '';
    }

    if ( !isset( 
$r['class'] ) )
        
$r['class'] = ( 'category' == $r['taxonomy'] ) ? 'categories' $r['taxonomy'];

    
extract$r );

    if ( !
taxonomy_exists($taxonomy) )
        return 
false;

    
$categories get_categories$r );

    
$output '';
    if ( 
$title_li && 'list' == $style )
            
$output '<li class="' esc_attr$class ) . '">' $title_li '<ul>';

    if ( empty( 
$categories ) ) {
        if ( ! empty( 
$show_option_none ) ) {
            if ( 
'list' == $style )
                
$output .= '<li>' $show_option_none '</li>';
            else
                
$output .= $show_option_none;
        }
    } else {
        if ( ! empty( 
$show_option_all ) ) {
            
$posts_page = ( 'page' == get_option'show_on_front' ) && get_option'page_for_posts' ) ) ? get_permalinkget_option'page_for_posts' ) ) : home_url'/' );
            
$posts_page esc_url$posts_page );
            if ( 
'list' == $style )
                
$output .= "<li><a href='$posts_page'>$show_option_all</a></li>";
            else
                
$output .= "<a href='$posts_page'>$show_option_all</a>";
        }

        if ( empty( 
$r['current_category'] ) && ( is_category() || is_tax() || is_tag() ) ) {
            
$current_term_object get_queried_object();
            if ( 
$r['taxonomy'] == $current_term_object->taxonomy )
                
$r['current_category'] = get_queried_object_id();
        }

        if ( 
$hierarchical )
            
$depth $r['depth'];
        else
            
$depth = -1// Flat.

        
$output .= walk_category_tree$categories$depth$r );
    }

    if ( 
$title_li && 'list' == $style )
        
$output .= '</ul></li>';

    
$output apply_filters'wp_list_categories'$output$args );

    if ( 
$echo )
        echo 
$output;
    else
        return 
$output;
}
?>

Examples [ wp-snippets.com ]

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