(PHP 4 >= 4.0.6, PHP 5)
fbsql_fetch_lengths — Get the length of each output in a result
Stores the lengths of each result column in the last row returned by
fbsql_fetch_object() in an array.
或 fbsql_db_query() 返回的结果标识符
Returns an array, starting at offset 0, that corresponds to the lengths of
each field in the last row fetched by fbsql_fetch_row(),
or FALSE on error.