Php 扩展不带插件的愿望列表以使用WooCommerce产品

我已经尝试了很多插件，但没有一个是适合我的。我终于找到了一个解决方案，如何在没有插件的情况下将帖子添加到收藏夹，它适用于帖子类型“post”，但我也需要woocommerce产品

我尝试将$args从'post\u type'=>'post'更改为'post\u type'=>'post，product'或'post\u type'=>'product'，但它不会将产品添加到收藏夹页面。仍然只有新增的帖子

这是一个来源，但有些单词是西里尔语，所以我会翻译

1）向functions.php添加3个函数

    //favorite posts array
    function favorite_id_array() { 
        if (!empty( $_COOKIE['favorite_post_ids'])) {
            return explode(',', $_COOKIE['favorite_post_ids']);
        }
        else {
            return array();
        }
    }
    
    
    
    //add to favorite function
    function add_favorite() {
        $post_id = (int)$_POST['post_id'];
        if (!empty($post_id)) {
            $new_post_id = array(
                $post_id
            );
            $post_ids = array_merge($new_post_id, favorite_id_array());
            $post_ids = array_diff($post_ids, array(
                ''
            ));
            $post_ids = array_unique($post_ids);
            setcookie('favorite_post_ids', implode(',', $post_ids) , time() + 3600 * 24 * 365, '/');
            echo count($post_ids);
        }
        die();
    }
    add_action('wp_ajax_favorite', 'add_favorite');
    add_action('wp_ajax_nopriv_favorite', 'add_favorite');
    
    
    
    //delete from favorite function
    function delete_favorite() {
        $post_id = (int)$_POST['post_id'];
        if (!empty($post_id)) {
            $favorite_id_array = favorite_id_array();
            if (($delete_post_id = array_search($post_id, $favorite_id_array)) !== false) {
                unset($favorite_id_array[$delete_post_id]);
            }
            setcookie('favorite_post_ids', implode(',', $favorite_id_array) , time() + 3600 * 24 * 30, '/');
            echo count($favorite_id_array);
        }
        die();
    }
    add_action('wp_ajax_delfavorite', 'delete_favorite');
    add_action('wp_ajax_nopriv_delfavorite', 'delete_favorite');

   <?php if(in_array($post->ID, favorite_id_array())){ ?>
   <div class="fv_<?php echo $post->ID; ?>" title="Already in favorite" ><img src="http://yoursite.com/path-to-your-icon.svg" ><a href="http://yoursite.com/favorite/">In favorite</a></div>
   <?php } else { ?>
   <div class="fv_<?php echo $post->ID; ?>" >
      <div class="add-favorite" title="Add to favorite" data-post_id="<?php echo $post->ID; ?>">
         <img src="http://yoursite.com/path-to-your-icon.svg">Add to favorite
      </div>
   </div>
   <?php } ?>

2）将“添加到收藏夹”链接添加到模板。对于帖子，它是single.php

    //favorite posts array
    function favorite_id_array() { 
        if (!empty( $_COOKIE['favorite_post_ids'])) {
            return explode(',', $_COOKIE['favorite_post_ids']);
        }
        else {
            return array();
        }
    }
    
    
    
    //add to favorite function
    function add_favorite() {
        $post_id = (int)$_POST['post_id'];
        if (!empty($post_id)) {
            $new_post_id = array(
                $post_id
            );
            $post_ids = array_merge($new_post_id, favorite_id_array());
            $post_ids = array_diff($post_ids, array(
                ''
            ));
            $post_ids = array_unique($post_ids);
            setcookie('favorite_post_ids', implode(',', $post_ids) , time() + 3600 * 24 * 365, '/');
            echo count($post_ids);
        }
        die();
    }
    add_action('wp_ajax_favorite', 'add_favorite');
    add_action('wp_ajax_nopriv_favorite', 'add_favorite');
    
    
    
    //delete from favorite function
    function delete_favorite() {
        $post_id = (int)$_POST['post_id'];
        if (!empty($post_id)) {
            $favorite_id_array = favorite_id_array();
            if (($delete_post_id = array_search($post_id, $favorite_id_array)) !== false) {
                unset($favorite_id_array[$delete_post_id]);
            }
            setcookie('favorite_post_ids', implode(',', $favorite_id_array) , time() + 3600 * 24 * 30, '/');
            echo count($favorite_id_array);
        }
        die();
    }
    add_action('wp_ajax_delfavorite', 'delete_favorite');
    add_action('wp_ajax_nopriv_delfavorite', 'delete_favorite');

   <?php if(in_array($post->ID, favorite_id_array())){ ?>
   <div class="fv_<?php echo $post->ID; ?>" title="Already in favorite" ><img src="http://yoursite.com/path-to-your-icon.svg" ><a href="http://yoursite.com/favorite/">In favorite</a></div>
   <?php } else { ?>
   <div class="fv_<?php echo $post->ID; ?>" >
      <div class="add-favorite" title="Add to favorite" data-post_id="<?php echo $post->ID; ?>">
         <img src="http://yoursite.com/path-to-your-icon.svg">Add to favorite
      </div>
   </div>
   <?php } ?>

<?php
/*
Template Name: favorite
*/
?> 
<?php
   $favorite_id_array = favorite_id_array();
   global $wp_query;
   $save_wpq = $wp_query;
   $args = array(
   'paged' => get_query_var( 'paged' ) ? absint( get_query_var( 'paged' ) ) : 1,
   'post_type'   => 'post',
   'post__in'   => !empty($favorite_id_array) ? $favorite_id_array : array(0),
    );
   $wp_query = new WP_Query( $args ); 
   ?>
<?php if ($wp_query->have_posts()) : ?>
<?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?>
<div class="fv_<?php echo $post->ID; ?>">
   <div class="delete-favorite" data-post_id="<?php echo $post->ID; ?>" title="Delete from favorite">
      <img src="http://yoursite.com/link-to-your-icon.svg" >Delete
   </div>
</div>
<a href="<?php the_permalink() ?>"><?php the_title(); ?></a>
<?php endwhile; ?>
<?php else : ?>
<p>No posts in your favorite</p>
<?php endif; ?>
<?php wp_reset_postdata();  ?> 
 
your pagination code there.