Constructor.

Parameters

$tax_queryarrayrequired

Array of taxonomy query clauses.

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

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

  Source

  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 );
  }
  

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  Changelog

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

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