WordPress at a glance
function is not described

WP_Meta_Query::has_or_relation() public WP 4.3.0

Checks whether the current query has any OR relations.

In some cases, the presence of an OR relation somewhere in the query will require the use of a DISTINCT or GROUP BY keyword in the SELECT clause. The current method can be used in these cases to determine whether such a clause is necessary.

{} It's a method of the class: WP_Meta_Query{}

No Hooks.

Return

true/false. True if the query contains any OR relations, otherwise false.

Usage

$WP_Meta_Query = new WP_Meta_Query();
$WP_Meta_Query->has_or_relation();

Changelog

Since 4.3.0 Introduced.

Code of WP_Meta_Query::has_or_relation() WP 5.5.1

<?php
public function has_or_relation() {
	return $this->has_or_relation;
}