PHP. Руководство по PHP. 2005
fbsql_field_name
fbsql_field_name
Описание
string fbsql_field_name (resource result [, int field_index])fbsql_field_name() returns the name of the specified field index. result must be a valid result identifier and field_index is the numerical offset of the field.
Замечание: field_index starts at 0.
e.g. The index of the third field would actually be 2, the index of the fourth field would be 3 and so on.