Summery Summery

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

Syntax Syntax

is_tax( string|string[] $taxonomy = '', int|string|int[]|string[] $term = '' )

Description 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.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

Parameters Parameters


(string|string[]) (Optional) Taxonomy slug or slugs to check against.

Default value: ''


(int|string|int[]|string[]) (Optional) Term ID, name, slug, or array of such to check against.

Default value: ''

Return Return

(bool) True for custom taxonomy archive pages, false for built-in taxonomies (category and tag archives).

Source Source

File: wp-includes/query.php

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

	if ( ! isset( $wp_query ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
		return false;

	return $wp_query->is_tax( $taxonomy, $term );


Changelog Changelog

Version Description
2.5.0 Introduced.


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