我正在尝试筛选自定义查询的分页结果。我有4篇帖子，每页3篇，总共2页。当我在第1页应用过滤器时，它会起作用。当我在第2页应用过滤器时，查询结果为空。

我的猜测是，要么查询不知道我在哪个页面上，要么我的表单action=“错误”。有什么提示吗？

<div class="row justify-content-md-center">
    <div class="col-9 m-4 pt-4 pb-4">
        <form action="" method="get">
            <label>Select option</label>
            <select name="filter_options">
                <option value="">Any</option>
                <option value="800">800</option>
                <option value="1200">1200</option>
            </select>
            <button type="submit" class="btn btn-primary">Filter</button>
        </form>
    </div>
</div>

<div class="row justify-content-md-center">
<?php
     $currentPage = get_query_var( \'paged\', 1 );

     if (array_key_exists(\'filter_options\', $_GET)) {
          $value = $_GET[\'filter_options\'];
          $args = array(
              \'post_type\'=> \'my_custom_type\',
              \'paged\' => $currentPage,
              \'posts_per_page\'=>3,
              \'meta_query\' => array(
                  \'relation\' => \'OR\',
                   array(
                        \'meta_key\' => \'my_meta_key\',
                        \'value\' => $value)
                    )
                );
     } else {
          $args = array(
             \'post_type\'=> \'my_custom_type\',
             \'paged\' => $currentPage,
             \'posts_per_page\'=>3
          );
    }

    $posts = new WP_Query($args);

    if ($posts->have_posts()) {
        while ($posts->have_posts()) {
            $posts->the_post();
            get_template_part( \'/template-parts/content\', \'filters\');
        }
    }
    wp_reset_query();
?>
</div>

<div class="row justify-content-md-center mt-5">    
    <div class="col-2">
            <?php echo paginate_links(array(
                \'total\' => $posts->max_num_pages,
                \'prev_text\' => \'Prev\',
                \'next_text\' => \'Next\'
            )); ?>
    </div>
</div>