我相信你能找到accordion 任意位置的代码示例。转换可能会有帮助terms 转换为更有利于嵌套元素的结构。

<?php

// Get terms as nested array

function get_nested_terms ($taxonomy, $array=array(), $args=array() ) {

    $args = wp_parse_args($args, array(
        \'orderby\'    => \'count\',
        \'parent\'     => 0,  
        \'hide_empty\' => true
    ));


    $terms = get_terms($taxonomy, $args);

    foreach ( $terms as $term ) {

        $args[\'parent\'] = $term->term_id;
        $children = get_nested_terms ( $taxonomy, array(), $args);

        $array [$term->term_id] = array(
            \'term\'     => $term,
            \'children\' => $children
        );

    }
    return $array;
}

// Render HTML from nested terms array

function render_nested_terms($array, $level = 0){
    $level++;
    foreach ( $array as $term_info ) {
        $classes = array(
            "level-" . $level,
            empty($term_info[\'children\'] ) ? \'no-children\' : \'has-children\'
        );
        echo \'<ul class="\' . implode (\' \', $classes ) . \'" ><li>\';

        // Showing the term name, 
        // but you could include term content below this item

        echo "term: " . $term_info[\'term\']->name;

        // Render the nested items

        if( ! empty($term_info[\'children\'] )) {
            render_nested_terms ( $term_info[\'children\'], $level );
        }

        echo \'</li></ul>\';

    }
}

$options = array(
    \'parent\'     => 0, 
    \'hide_empty\' => false
);

$nested_terms = get_nested_terms (\'category\', array(), $options );

render_nested_terms ($nested_terms);