添加后wp-custom-menu-filter 插件-为了隐藏未登录用户的某些菜单项，当前的\\u page\\u item类从我的菜单中消失。$item->classes 在walker中是一个空数组，而不是通常的page-item-$id, current_page_item.

我已经查看了源代码，但它没有修改classes数组，所以我不知道发生了什么。下面是代码的相关部分。

function wps_custom_nav_menu_items( $args ){
    global $wpcmfp_settings;

    $nav_item_db_id = $args[1]->ID;
    $nav_menu = wp_get_object_terms( $nav_item_db_id, \'nav_menu\' );
    $menu_id = $nav_menu[0]->term_id;

    // Get the class to exclude
    if ( !is_user_logged_in() ) {
        $exclusion_class = $wpcmfp_settings[ \'menu-\' . $menu_id . \'-loggedout\' ];
    }
    else {
        $exclusion_class = $wpcmfp_settings[ \'menu-\' . $menu_id . \'-loggedin\' ];
    }

    $nav_items = wp_get_nav_menu_items( $menu_id );

    // Cycle through all nav_items
    foreach ( $nav_items as $nav_item ) {   

        // Cycle through all classes
        for ( $i=0; $i < count( $nav_item->classes ); $i++ ) {
            $exclude = false;

            // if nothing is there set to add
            if ( strlen ( $nav_item->classes[ $i ] ) < 1 ) {
                $exclude = false;
            }
            else
            {   
                // if matches add to exclusion array & break loop
                if ( $nav_item->classes[ $i ] == $exclusion_class ) {
                    $excluded_nav_items[] = $nav_item; 
                    $exclude = true;
                    break;
                }
            }
        }

        if ( $exclude != true )
            $modified_nav_items[] = $nav_item;

    }

    return $modified_nav_items;
}

add_filter( \'wp_nav_menu_objects\', \'wps_custom_nav_menu_items\' , 10 , 3);

我使用的是自定义页面漫游器，我尝试过使用默认页面漫游器，但没有任何效果，没有这个插件，自定义页面漫游器就可以正常工作。以下是步行者的密码：

class My_Walker_Page extends Walker_Nav_Menu {

  protected $_counter = 0;
  protected $_itemsPerColumn = 1;

  function start_lvl(&$output, $depth) {
    $this->_counter = 0;

    $output .= \'<some html>\';

  }

  function end_lvl(&$output, $depth) {
    $output .= \'<some html>\';        
    $this->_counter = 0;
  }

  function start_el(&$output, $page, $depth, $args, $current_page = null) {

    $args = ( array ) $args;

    if ($depth == 0) {
      return parent::start_el ( $output, $page, $depth, $args, $current_page );
    }

    if ($depth == 1) {
      extract ( $args, EXTR_SKIP );
      $output .= \'<dt><a href="\' . esc_attr ( $page->url ) . \'" title="\' . esc_attr ( wp_strip_all_tags ( apply_filters ( \'the_title\', $page->title, $page->ID ) ) ) . \'">\' . $link_before . apply_filters ( \'the_title\', $page->title, $page->ID ) . $link_after . \'</a>\';

      if (! empty ( $page->description )) {
        $output .= \'<span class="menu_item_description">\' . $page->description . \'</span>\';
      }

      $output .= \'</dt>\';

      $this->_counter ++;
      if ($this->_counter % $this->_itemsPerColumn == 0) {
        $output .= \'</dl><dl>\';
      }

    }
  }

  function end_el(&$output, $page, $depth) {
    if ($depth == 0) {
      return parent::end_el ( &$output, $page, $depth );
    }
  }

  function display_element($element, &$children_elements, $max_depth, $depth = 0, $args, &$output) {

    if (! $element)
      return;

    $id_field = $this->db_fields [\'id\'];
    if ($depth == 0) {
      $this->_itemsPerColumn = ceil ( count ( $children_elements [$element->$id_field] ) / 4 );
    }

    return parent::display_element ( $element, $children_elements, $max_depth, $depth, $args, $output );
  }
}

我同意用另一种方法来隐藏未登录用户的菜单项，而不是修复插件，但由于我从未使用wp_nav_menu_objects 我真的不知道发生了什么事。

$nav_items = wp_get_nav_menu_items( $menu_id );

$nav_items = $args;