mssql_fetch_object() is similar to mssql_fetch_array(), with one difference - an object is returned, instead of an array. Indirectly, that means that you can only access the data by the field names, and not by their offsets (numbers are illegal property names).
Speed-wise, the function is identical to mssql_fetch_array(), and almost as quick as mssql_fetch_row() (the difference is insignificant).
resultThe result resource that is being evaluated. This result comes from a call to mssql_query().
Returns an object with properties that correspond to the fetched row, or FALSE if there are no more rows.