# get_query_var()

URL: https://chugunov.pro/api-wordpress/functions/get_query_var/
Проверено на WordPress 6.9, обновлено 06.08.2026.
Источник: независимый русскоязычный справочник chugunov.pro. Не является официальной документацией WordPress.

Тип: функция.
Появился в версии: 3.9.0.

## Сигнатура

```php
get_query_var( string $query_var, mixed $default_value = '' ): mixed
```

## Описание

Извлекает значение переменной запроса в классе WP_Query.

## Параметры

- `$query_var` `string` — обязательный. Ключ извлекаемой переменной.
- `$default_value` `mixed` — необязательный, по умолчанию `''`. Значение, возвращаемое, если переменная запроса не задана.

## Возвращаемое значение

`mixed`

## Исходный код

Файл: `wp-includes/query.php:27`

```php
function get_query_var( $query_var, $default_value = '' ) {
	global $wp_query;
	return $wp_query->get( $query_var, $default_value );
}
```

## История изменений

- 3.9.0 — The $default_value argument was introduced.
- 1.5.0 — Introduced.

## Связанные

Использует: `WP_Query::get`.
Используется в: [`build_comment_query_vars_from_block`](https://chugunov.pro/api-wordpress/functions/build_comment_query_vars_from_block/), `WP_Sitemaps::render_sitemaps`, [`_find_post_by_old_slug`](https://chugunov.pro/api-wordpress/functions/_find_post_by_old_slug/), [`_find_post_by_old_date`](https://chugunov.pro/api-wordpress/functions/_find_post_by_old_date/), [`get_the_post_type_description`](https://chugunov.pro/api-wordpress/functions/get_the_post_type_description/), [`wp_get_canonical_url`](https://chugunov.pro/api-wordpress/functions/wp_get_canonical_url/), [`wp_dropdown_categories`](https://chugunov.pro/api-wordpress/functions/wp_dropdown_categories/), [`paginate_links`](https://chugunov.pro/api-wordpress/functions/paginate_links/), [`feed_links_extra`](https://chugunov.pro/api-wordpress/functions/feed_links_extra/), [`get_search_query`](https://chugunov.pro/api-wordpress/functions/get_search_query/), [`single_month_title`](https://chugunov.pro/api-wordpress/functions/single_month_title/), [`wp_get_archives`](https://chugunov.pro/api-wordpress/functions/wp_get_archives/), [`post_type_archive_title`](https://chugunov.pro/api-wordpress/functions/post_type_archive_title/), [`wp_title`](https://chugunov.pro/api-wordpress/functions/wp_title/), `WP::handle_404`, [`wp_old_slug_redirect`](https://chugunov.pro/api-wordpress/functions/wp_old_slug_redirect/), [`do_feed`](https://chugunov.pro/api-wordpress/functions/do_feed/), [`get_next_comments_link`](https://chugunov.pro/api-wordpress/functions/get_next_comments_link/), [`get_previous_comments_link`](https://chugunov.pro/api-wordpress/functions/get_previous_comments_link/), [`paginate_comments_links`](https://chugunov.pro/api-wordpress/functions/paginate_comments_links/), [`get_posts_nav_link`](https://chugunov.pro/api-wordpress/functions/get_posts_nav_link/), [`wp_dropdown_users`](https://chugunov.pro/api-wordpress/functions/wp_dropdown_users/), [`get_archive_template`](https://chugunov.pro/api-wordpress/functions/get_archive_template/), [`get_post_type_archive_template`](https://chugunov.pro/api-wordpress/functions/get_post_type_archive_template/), [`get_page_template`](https://chugunov.pro/api-wordpress/functions/get_page_template/), [`get_body_class`](https://chugunov.pro/api-wordpress/functions/get_body_class/), [`redirect_canonical`](https://chugunov.pro/api-wordpress/functions/redirect_canonical/), [`redirect_guess_404_permalink`](https://chugunov.pro/api-wordpress/functions/redirect_guess_404_permalink/), [`wp_list_comments`](https://chugunov.pro/api-wordpress/functions/wp_list_comments/), [`comments_template`](https://chugunov.pro/api-wordpress/functions/comments_template/), [`get_comment_link`](https://chugunov.pro/api-wordpress/functions/get_comment_link/), [`get_comment_pages_count`](https://chugunov.pro/api-wordpress/functions/get_comment_pages_count/), [`get_page_of_comment`](https://chugunov.pro/api-wordpress/functions/get_page_of_comment/).

Оригинал в официальной документации: https://developer.wordpress.org/reference/functions/get_query_var/