覆蓋功能WordPress中的小部件

Question

我試圖覆蓋WordPress中的文本小部件。我的代碼如下所示：

class WP_Widget_Text_Custom extends WP_Widget { 

    function __construct() { 
     $widget_ops = array('classname' => 'widget_text', 'description' => __('Arbitrary text or HTML')); 
     $control_ops = array('width' => 400, 'height' => 350); 
     parent::__construct('text', __('Text'), $widget_ops, $control_ops); 
    } 

    function WP_Widget_Calendar($args, $instance) { 
     extract($args); 
     $title = apply_filters('widget_title', empty($instance['title']) ? '' : $instance['title'], $instance, $this->id_base); 
     $text = apply_filters('widget_text', empty($instance['text']) ? '' : $instance['text'], $instance); 
     echo $before_widget; 
     if (!empty($title)) { echo $before_title . $title . $after_title; } ?> 
      <div class="textwidget test"><?php echo !empty($instance['filter']) ? wpautop($text) : $text; ?></div> 
     <?php 
     echo $after_widget; 
    } 

    function update($new_instance, $old_instance) { 
     $instance = $old_instance; 
     $instance['title'] = strip_tags($new_instance['title']); 
     if (current_user_can('unfiltered_html')) 
      $instance['text'] = $new_instance['text']; 
     else 
      $instance['text'] = stripslashes(wp_filter_post_kses(addslashes($new_instance['text']))); // wp_filter_post_kses() expects slashed 
     $instance['filter'] = isset($new_instance['filter']); 
     return $instance; 
    } 

    function form($instance) { 
     $instance = wp_parse_args((array) $instance, array('title' => '', 'text' => '')); 
     $title = strip_tags($instance['title']); 
     $text = esc_textarea($instance['text']); 
?> 
     <p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label> 
     <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></p> 

     <textarea class="widefat" rows="16" cols="20" id="<?php echo $this->get_field_id('text'); ?>" name="<?php echo $this->get_field_name('text'); ?>"><?php echo $text; ?></textarea> 

     <p><input id="<?php echo $this->get_field_id('filter'); ?>" name="<?php echo $this->get_field_name('filter'); ?>" type="checkbox" <?php checked(isset($instance['filter']) ? $instance['filter'] : 0); ?> />&nbsp;<label for="<?php echo $this->get_field_id('filter'); ?>"><?php _e('Automatically add paragraphs'); ?></label></p> 
<?php 
    } 
} 

function custom_register_widgets() { 
    register_widget('WP_Widget_Text_Custom'); 
} 

add_action('widgets_init', 'custom_register_widgets'); 

即時得到以下錯誤消息： *功能WP_Widget ::小部件（）必須超過纏身的一個子類*

我抄WP_Widget_Text從default-widgets.php到functions.php，並在類名稱中添加_Custom。

爲什麼我得到這個錯誤，我該如何解決？

Answer 1

您可以嘗試更改WP_Widget_Calendar爲widget。