odbc_field_num
    (PHP 3>= 3.0.6, PHP 4 )
odbc_field_num -- Return column number
Description
int 
odbc_field_num ( resource result_id, string field_name)
     odbc_field_num() will return the number of the
     column slot that corresponds to the named field in the given ODBC
     result identifier.  Field numbering starts at 1.
     FALSE is returned on error.