( string result_id )
After calling sesam_query() with a "select
type" query, this function gives you the number of columns in the
result. Returns an integer describing the total number of
columns (aka. fields) in the current
result_id result set or
FALSE on error.
For "immediate" statements, the value zero is returned. The SESAM
"multiple field" columns count as their respective dimension,
i.e., a three-column "multiple field" counts as three columns.
See also: sesam_query() and
sesam_field_array() for a way to distinguish
between "multiple field" columns and regular columns.