src/includes/classes/Core/Utils/Sql.php
public function escapeOrder(string $order): string
    {
        $string = mb_strtoupper($order);
        return in_array($order, ['ASC', 'DESC'], true) ? $order : 'ASC';
    }
public function escapeOrder(string $order): string
    {
        $string = mb_strtoupper($order);
        return in_array($order, ['ASC', 'DESC'], true) ? $order : 'ASC';
    }
Escapes order direction.

@since 160422 SQL utils.

@param string $order Order direction.

@return string Escaped order direction.