WP_Query::is_archive() WP 3.1.0

Is the query for an existing archive page?

Month, Year, Category, Author, Post Type archive...

Это метод класса: WP_Query

Хуков нет.

Возвращает

true/false.

Использование

$WP_Query = new WP_Query();
$var = $WP_Query->is_archive();

Код WP Query::is archive: wp-includes/class-wp-query.php ^{WP 5.2}

<?php
public function is_archive() {
	return (bool) $this->is_archive;
}