WP_Date_Query::sanitize_relation( string $relation )

Sanitizes a ‘relation’ operator.

Parameters

$relation

(Required) Raw relation key from the query argument.

Return

(string) Sanitized relation ('AND' or 'OR').

Source

File: wp-includes/class-wp-date-query.php 

	public function sanitize_relation( $relation ) {
		if ( 'OR' === strtoupper( $relation ) ) {
			return 'OR';
		} else {
			return 'AND';
		}
	}

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Changelog

Changelog
Version Description
6.0.3 Introduced.