Question about pgsql.xml

I am working on pgsql.xml to translate and have a question on the function: <manual> object pg_fetch_object ( resource result, int row [, int result_type]) [...] Indirectly, that means that you can only access the data by the field names, and not by their offsets (numbers are illegal property names). result_type is optional parameter controls how return value is initialized. result_type is a constant and can take the following values: PGSQL_ASSOC, PGSQL_NUM, and PGSQL_BOTH. pg_fetch_array() returns associative array that has field name as key for PGSQL_ASSOC. field index as key with PGSQL_NUM and both field name/index as key with PGSQL_BOTH. Default is PGSQL_BOTH. </manual> Is this correct? How can I retrieve an object with the option PGSQL_NUM if numbers are illegal property names? Greetings Conni