yii\elasticsearch\Query::exists PHP Method

Returns a value indicating whether the query result contains any row of data.

public exists ( Connection $db = null ) : boolean
$db	Connection	the database connection used to execute the query. If this parameter is not given, the `elasticsearch` application component will be used.
return	boolean	whether the query result contains any row of data.

    public function exists($db = null)
    {
        return self::one($db) !== false;
    }

Query