谁能告诉我如何从AJAX文件中获取get\\u queryed\\u object\\u id？

我尝试的是：

$object_id = get_queried_object_id();
print_r($object_id); die();
// Outputs 0

global $wp_query;
$object_id = $wp_query->get_queried_object_id();
print_r($object_id); die(\'\');
// Outputs 0

更新：的输出global $wp_query;var_dump($wp_query);exit;

["queried_object"]=>
  NULL
  ["queried_object_id"]=>
  NULL
  ["request"]=>
  NULL
  ["posts"]=>
  NULL
  ["post_count"]=>
  int(0)
  ["current_post"]=>
  int(-1)
  ["in_the_loop"]=>
  bool(false)
  ["post"]=>
  NULL
  ["comments"]=>
  NULL
  ["comment_count"]=>
  int(0)
  ["current_comment"]=>
  int(-1)
  ["comment"]=>
  NULL
  ["found_posts"]=>
  int(0)
  ["max_num_pages"]=>
  int(0)
  ["max_num_comment_pages"]=>
  int(0)
  ["is_single"]=>
  bool(false)
  ["is_preview"]=>
  bool(false)
  ["is_page"]=>
  bool(false)
  ["is_archive"]=>
  bool(false)
  ["is_date"]=>
  bool(false)
  ["is_year"]=>
  bool(false)
  ["is_month"]=>
  bool(false)
  ["is_day"]=>
  bool(false)
  ["is_time"]=>
  bool(false)
  ["is_author"]=>
  bool(false)
  ["is_category"]=>
  bool(false)
  ["is_tag"]=>
  bool(false)
  ["is_tax"]=>
  bool(false)
  ["is_search"]=>
  bool(false)
  ["is_feed"]=>
  bool(false)
  ["is_comment_feed"]=>
  bool(false)
  ["is_trackback"]=>
  bool(false)
  ["is_home"]=>
  bool(false)
  ["is_404"]=>
  bool(false)
  ["is_embed"]=>
  bool(false)
  ["is_paged"]=>
  bool(false)
  ["is_admin"]=>
  bool(false)
  ["is_attachment"]=>
  bool(false)
  ["is_singular"]=>
  bool(false)
  ["is_robots"]=>
  bool(false)
  ["is_posts_page"]=>
  bool(false)
  ["is_post_type_archive"]=>
  bool(false)
  ["query_vars_hash":"WP_Query":private]=>
  bool(false)
  ["query_vars_changed":"WP_Query":private]=>
  bool(true)
  ["thumbnails_cached"]=>
  bool(false)
  ["stopwords":"WP_Query":private]=>
  NULL
  ["compat_fields":"WP_Query":private]=>
  array(2) {
    [0]=>
    string(15) "query_vars_hash"
    [1]=>
    string(18) "query_vars_changed"
  }
  ["compat_methods":"WP_Query":private]=>
  array(2) {
    [0]=>
    string(16) "init_query_flags"
    [1]=>
    string(15) "parse_tax_query"
  }
}