WP_Query::is_tax( string|string[] $taxonomy, int|string|int[]|string[] $term ): bool

Determines whether the query is for an existing custom taxonomy archive page.

Description

If the $taxonomy parameter is specified, this function will additionally check if the query is for that specific $taxonomy.

If the $term parameter is specified in addition to the $taxonomy parameter, this function will additionally check if the query is for one of the terms specified.

Parameters

$taxonomystring|string[]optional
Taxonomy slug or slugs to check against.
Default empty.
$termint|string|int[]|string[]optional
Term ID, name, slug, or array of such to check against. Default empty.

Return

bool Whether the query is for an existing custom taxonomy archive page.
True for custom taxonomy archive pages, false for built-in taxonomies (category and tag archives).

Source

public function is_tax( $taxonomy = '', $term = '' ) {
	global $wp_taxonomies;

	if ( ! $this->is_tax ) {
		return false;
	}

	if ( empty( $taxonomy ) ) {
		return true;
	}

	$queried_object = $this->get_queried_object();
	$tax_array      = array_intersect( array_keys( $wp_taxonomies ), (array) $taxonomy );
	$term_array     = (array) $term;

	// Check that the taxonomy matches.
	if ( ! ( isset( $queried_object->taxonomy ) && count( $tax_array ) && in_array( $queried_object->taxonomy, $tax_array, true ) ) ) {
		return false;
	}

	// Only a taxonomy provided.
	if ( empty( $term ) ) {
		return true;
	}

	return isset( $queried_object->term_id ) &&
		count(
			array_intersect(
				array( $queried_object->term_id, $queried_object->name, $queried_object->slug ),
				$term_array
			)
		);
}

Changelog

VersionDescription
3.1.0Introduced.

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