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✏️ Editing: class.walkers.php

<?php

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
    
    class Post_Types_Order_Walker extends Walker 
        {

var $db_fields = array (    
                                        'parent' => 'post_parent', 
                                        'id' => 'ID'
                                        );

function start_lvl(&$output, $depth = 0, $args = array()) 
                {
                    $indent = str_repeat("\t", $depth);
                    $output .= "\n$indent<ul class='children'>\n";
                }

function end_lvl(&$output, $depth = 0, $args = array()) 
                {
                    $indent = str_repeat("\t", $depth);
                    $output .= "$indent</ul>\n";
                }

function start_el(&$output, $page, $depth = 0, $args = array(), $id = 0) 
                {
                    if ( $depth )
                        $indent = str_repeat("\t", $depth);
                    else
                        $indent = '';

extract($args, EXTR_SKIP);

$item_details   =   apply_filters( 'the_title', $page->post_title, $page->ID );
                    $item_details   =   apply_filters('cpto/interface_itme_data', $item_details, $page);
                                    
                    $output .= $indent . '<li id="item_'.$page->ID.'"><span>'. $item_details .'</span>';
                    
                    
                                    
                }

function end_el(&$output, $page, $depth = 0, $args = array()) 
                {
                    $output .= "</li>\n";
                }

}

MR SKB