File: wp-includes/class-wp-query.php. View all references

public function is_post_type_archive( $post_types = '' ) {
	if ( empty( $post_types ) || ! $this->is_post_type_archive ) {
		return (bool) $this->is_post_type_archive;
	}

	$post_type = $this->get( 'post_type' );
	if ( is_array( $post_type ) ) {
		$post_type = reset( $post_type );
	}
	$post_type_object = get_post_type_object( $post_type );

	if ( ! $post_type_object ) {
		return false;
	}

	return in_array( $post_type_object->name, (array) $post_types, true );
}

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