Constructor.

$tax_query array Required

Array of taxonomy query clauses.

• relationstring
  Optional. The MySQL keyword used to join the clauses of the query. Accepts 'AND', or 'OR'. Default 'AND'.
• ...$0array
  An array of first-order clause parameters, or another fully-formed tax query.

  • taxonomystring
    Taxonomy being queried. Optional when field=term_taxonomy_id.
  • termsstring|int|array
    Term or terms to filter by.
  • fieldstring
    Field to match $terms against. Accepts 'term_id', 'slug', 'name', or 'term_taxonomy_id'. Default: 'term_id'.
  • operatorstring
    MySQL operator to be used with $terms in the WHERE clause.
    Accepts 'AND', 'IN', 'NOT IN', 'EXISTS', 'NOT EXISTS'.
    Default: 'IN'.
  • include_childrenbool
    Optional. Whether to include child terms.
    Requires a $taxonomy. Default: true.
    

  Source

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

  public function __construct( $tax_query ) {
  	if ( isset( $tax_query['relation'] ) ) {
  		$this->relation = $this->sanitize_relation( $tax_query['relation'] );
  	} else {
  		$this->relation = 'AND';
  	}
  
  	$this->queries = $this->sanitize_query( $tax_query );
  }
  

  Related

  Uses

  Uses	Description
  WP_Tax_Query::sanitize_relation() wp-includes/class-wp-tax-query.php	Sanitizes a ‘relation’ operator.
  WP_Tax_Query::sanitize_query() wp-includes/class-wp-tax-query.php	Ensures the ‘tax_query’ argument passed to the class constructor is well-formed.

  Used By

  Used By	Description
  WP_Query::parse_tax_query() wp-includes/class-wp-query.php	Parses various taxonomy related query vars.
  get_tax_sql() wp-includes/taxonomy.php	Given a taxonomy query, generates SQL to be appended to a main query.

  Changelog

  Version	Description
  4.1.0	Added support for $operator 'NOT EXISTS' and 'EXISTS' values.
  3.1.0	Introduced.