is_tax

Is the query for an existing custom taxonomy archive page?.

Description

is_tax( (string) $taxonomy = '', (string) $term = '' ); 

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 (2)

0. $taxonomy — Optional. (string) => ''
Taxonomy slug or slugs.
1. $term — Optional. (string) => ''
Term ID, name, slug or array of Term IDs, names, and slugs.

Usage

  1. if ( !function_exists( 'is_tax' ) ) { 
  2.     require_once ABSPATH . WPINC . '/query.php'; 
  3. } 
  4.   
  5. // Optional. Taxonomy slug or slugs. 
  6. $taxonomy = ''; 
  7.   
  8. // Optional. Term ID, name, slug or array of Term IDs, names, and slugs. 
  9. $term = ''; 
  10.   
  11. // NOTICE! Understand what this does before running. 
  12. $result = is_tax($taxonomy, $term); 
  13.     

Defined (1)

The function is defined in the following location(s).

/wp-includes/query.php  
  1. function is_tax( $taxonomy = '', $term = '' ) { 
  2.     global $wp_query; 
  3.  
  4.     if ( ! isset( $wp_query ) ) { 
  5.         _doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' ); 
  6.         return false; 
  7.     } 
  8.  
  9.     return $wp_query->is_tax( $taxonomy, $term ); 
  10. }