Some options for Microsoft SQL Server ODBC:
1 - (SQL_MAX_ROWS) show top x rows
6 - (SQL_CURSOR_TYPE) zmiana kursora - ma działać dopiero w PHP 5.3
You can "translate" constant names (found on e.g. Microsoft website) to appropriate values using this page:
http://www.freepascal.org/docs-html/packages/odbcsql/index-2.html
BTW. If anyone is banging his head about "cursor type changed" warning while using execute with ORDER BY clause, then just use exec for now (remember to addslashes for yourself). In PHP 5.3 a Bug #43668 will be fixed and it will allow you to change a cursor type to SQL_CUR_USE_ODBC.
Note that you could also try to select a cursor type in odbc_connect, but that didn't work for me (much more problems appeared then it solved).