How to display a category list in a mediawiki like way?

by

You can play with Walker to customize output into being split by letters. From there it is matter of CSS to achieve column formatting.

Quick take on Walker:

class Walker_Alphabetized_Category extends Walker_Category {

    var $letter="";

    function start_el(&$output, $category, $depth, $args) {

        $current_letter = strtoupper(substr($category->name,0,1));

        if( empty($this->letter) ) {

            $this->letter = $current_letter;
            $output .= "<li>{$current_letter}<ul>";
        }
        elseif( $this->letter != $current_letter ) {

            $output .= "</ul></li>";
            $this->letter = $current_letter;
            $output .= "<li>{$current_letter}<ul>";
        }

        parent::start_el(&$output, $category, $depth, $args);
    }
}

echo '<ul>';
wp_list_categories(array(
                    'hierarchical' => false,
                    'orderby' => 'name',
                    'title_li' => '',
                    'walker' => new Walker_Alphabetized_Category(),
                   ));
echo '</ul>';

Leave a Comment