WP_Tax_Query

22#[AllowDynamicProperties]23class WP_Tax_Query {24 25	/**26	 * Array of taxonomy queries.27	 *28	 * See WP_Tax_Query::__construct() for information on tax query arguments.29	 *30	 * @since 3.1.031	 * @var array32	 */33	public $queries = array();34 35	/**36	 * The relation between the queries. Can be one of 'AND' or 'OR'.37	 *38	 * @since 3.1.039	 * @var string40	 */41	public $relation;42 43	/**44	 * Standard response when the query should not return any rows.45	 *46	 * @since 3.2.047	 * @var array<string, array<string>>48	 */49	private static $no_results = array(50		'join'  => array( '' ),51		'where' => array( '0 = 1' ),52	);53 54	/**55	 * A flat list of table aliases used in the JOIN clauses.56	 *57	 * @since 4.1.058	 * @var array59	 */60	protected $table_aliases = array();61 62	/**63	 * Terms and taxonomies fetched by this query.64	 *65	 * We store this data in a flat array because they are referenced in a66	 * number of places by WP_Query.67	 *68	 * @since 4.1.069	 * @var array70	 */71	public $queried_terms = array();72 73	/**74	 * Database table that where the metadata's objects are stored (eg $wpdb->users).75	 *76	 * @since 4.1.077	 * @var string78	 */79	public $primary_table;80 81	/**82	 * Column in 'primary_table' that represents the ID of the object.83	 *84	 * @since 4.1.085	 * @var string86	 */87	public $primary_id_column;88 89	/**90	 * Constructor.91	 *92	 * @since 3.1.093	 * @since 4.1.0 Added support for `$operator` 'NOT EXISTS' and 'EXISTS' values.94	 *95	 * @param array $tax_query {96	 *     Array of taxonomy query clauses.97	 *98	 *     @type string $relation Optional. The MySQL keyword used to join99	 *                            the clauses of the query. Accepts 'AND', or 'OR'. Default 'AND'.100	 *     @type array  ...$0 {101	 *         An array of first-order clause parameters, or another fully-formed tax query.