如何添加和显示类别图像

我创建了一个WordPress插件来创建一个小部件区域来显示类别名称（帖子的总nmbr）和描述。现在，我想在类别名称之后显示类别图像，在我想显示类别描述的图像之后显示类别图像。虽然类别名称和描述显示成功，但我只想了解如何将功能图像添加到类别以及如何在类别描述小部件区域显示的完整代码。

以下是我的完整Category Description Widget Area 密码

<?php
/*
Plugin Name: My Category Description Widget Plugin
Plugin URI: http://mkrdip.me/category-posts-widget
Description: Adds a widget that shows all categories along with their description.
Author: Muhammad Jahangir
Version: 1.0
Author URI: http://facebook.com/jahangirKhattakPk
*/
class categories_description extends WP_Widget
{
    function __construct()
    {
        $widget_ops = array( 
            \'classname\' => \'categoryDescription widget\',
            \'description\' => \'Show all categories with their description.\',
        );
        parent::__construct( \'categories_description\', \'My Category Description\', $widget_ops );
    }
    // end __construct()

    public function form( $instance ) {
        $title = ! empty( $instance[\'title\'] ) ? $instance[\'title\'] : __( \'New title\', \'text_domain\' );
        ?>
        <p>
        <label for="<?php echo esc_attr( $this->get_field_id( \'title\' ) ); ?>"><?php _e( esc_attr( \'Title:\' ) ); ?></label> 
        <input class="widefat" id="<?php echo esc_attr( $this->get_field_id( \'title\' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( \'title\' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>">
        </p>
        <?php 
    }
    // End form function

// Updating widget replacing old instances with new
public function update( $new_instance, $old_instance ) {
    $instance = array();
    $instance[\'title\'] = ( ! empty( $new_instance[\'title\'] ) ) ? strip_tags( $new_instance[\'title\'] ) : \'\';
    return $instance;
}
// End update function
    function widget($args,$instance){
           echo $args[\'before_widget\'];
            if ( ! empty( $instance[\'title\'] ) )
            {


        ?>
        <div class="categoriesDescription bgWhite">
                <div class="container innerContainer">
                    <h2 class="widgetTitle"><?php echo apply_filters( \'widget_title\', $instance[\'title\'] ); } ?></h2>
                        <?php $categories = get_categories();
                        foreach ($categories as $cat)
                            { 

                                $cat_name = $cat->name;
                                $CategoryID = get_cat_ID( $cat_name );
                                $totalPosts = $cat->count;
                                $currentcatname = $cat_name;



                                ?>

                              <div class="category-image">

                              </div>

                                <div class="singleCategory col-lg-4">
                                    <a href="<?php echo get_category_link( $cat ); ?>" class="uppercase categoryTitle">
                                        <?php echo $cat_name; ?></a>
                                        <span class="numberOfPosts">
                                        <?php 
                                            echo \'( \'.$totalPosts.\' )\'; 
                                        ?>
                                </span>                         
                                <div class="CategoryImg"><?php echo $cat->term_icon; ?>
                                    // here I want to show category feature image...
                                <div class="my-image">
                                <?php

 ?>
                                <header class="archive-header <?php if ($category_image==true) echo \'category-image\'; ?>">

                                 </div>

                                </div>
                                <p class="CategoryDescription"><?php echo $cat->description; ?></p>
                                <p><?php echo $CategoryID; ?></p>
                               </div>
                            <?php 
                            } ?>
                    <div class="clearfix"></div>
                </div>
        </div>
    </div>
</div>
        <?php

    }
    // End widget function
}
//end categories_description class
    add_action(\'widgets_init\', function() {
        register_widget(\'categories_description\');
    })
?>

// to match widget to an existing custom post // similar to get_post but can use slug (if no post parents) $slug = $instance[\'id\']; // not sure on this? $post = get_page_by_path($slug,OBJECT,\'cat_image\'); if (!$post) { // create fresh post from widget instance data $args = array(\'post_type\' => \'cat_image\'); // ...and all the rest $post = wp_insert_post($args); } $thumbnail_id = get_post_meta( $post->ID, \'_thumbnail_id\', true ); $postthumbnailhtml = _wp_post_thumbnail_html( $thumbnail_id, $post->ID );

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