> */ interface SqlResult extends \Traversable { /** * Returns the next row in the result set or null if no rows remain. This method may be used as an alternative * to foreach iteration to obtain single rows from the result. * * @return array|null */ public function fetchRow(): ?array; /** * Resolves with a new instance of Result if another result is available after this result. Resolves with null if * no further results are available. * * @return SqlResult|null */ public function getNextResult(): ?self; /** * Returns the number of rows affected or returned by the query if applicable or null if the number of rows is * unknown or not applicable to the query. */ public function getRowCount(): ?int; /** * Returns the number of columns returned by the query if applicable or null if the number of columns is * unknown or not applicable to the query. */ public function getColumnCount(): ?int; }