An PgSql\Result instance, returned by pg_query, pg_query_params or pg_execute(among others).
Row number in result to fetch. Rows are numbered from 0 upwards. If omitted, current row is fetched.
Field number (starting from 0) as an int or the field name as a string.
Returns 1 if the field in the given row is SQL NULL, 0 if not. false is returned if the row is out of range, or upon any other error.
|8.1.0||The result parameter expects an PgSql\Result instance now; previously, a resource was expected.|