WP_Tax_Query::sanitize_relation( string $relation )
Sanitize a ‘relation’ operator.
Parameters
- $relation
-
(string) (Required) Raw relation key from the query argument.
Return
(string) Sanitized relation ('AND' or 'OR').
Source
File: wp-includes/class-wp-tax-query.php
public function sanitize_relation( $relation ) {
if ( 'OR' === strtoupper( $relation ) ) {
return 'OR';
} else {
return 'AND';
}
}
Changelog
| Version | Description |
|---|---|
| WP-4.1.0 | Introduced. |