pg_num_rows will return the number of rows in an PgSql\Result instance.
This function used to be called pg_numrows.
An PgSql\Result instance, returned by pg_query, pg_query_params or pg_execute(among others).
The number of rows in the result. On error, -1 is returned.
|8.1.0||The result parameter expects an PgSql\Result instance now; previously, a resource was expected.|