Question

WordPress 5.2.4

我在这里创建了一个插件：ftp://mysite.com:21/ved.rf/public_html/wp-content/plugins/news-vs-other/news_vs_other.php

这是一项学习任务。我想显示所有类别。这个想法是：采用现有的类，创建一个子类并调用父类的public方法。但是我什至没有导入必要的类。你能给我踢一下吗？

<?php
/*
Plugin Name: News Categories only
Plugin URI: -
Description: News Categories only
Version: 1.0
Author: N
Author URI: -
*/
include '../../../wp-includes/widgets/class-wp-widget-categories.php';

// Register and load the widget
function news_only_load_widget() {
    register_widget( 'news_only_widget' );
}
add_action( 'widgets_init', 'news_only_load_widget' );

// Creating the widget 
class News_Only_Widget extends WP_Widget_Categories {

    public function __construct() {
        $widget_ops = array( 
            'classname' => 'news_only_widget',
            'description' => 'News Only Widget',
        );
        parent::__construct( 'news_only_widget', 'News Only Widget', $widget_ops );
    }

    // Creating widget front-end
    public function widget( $args, $instance ) {
        parent::widget( $args, $instance );
    } 
} // Class wpb_widget ends here

?>

跟踪

Warning: include(../../../wp-includes/widgets/class-wp-widget-categories.php): failed to open stream: No such file or directory on line 10.

从WP_Widget_Categories的子级调用它是父级的方法

0 个答案: