( resource result [, int row] )
pg_fetch_assoc() returns an associative array that
corresponds to the fetched row (records).
pg_fetch_assoc() is equivalent to calling
pg_fetch_array() with PGSQL_ASSOC as the
optional third parameter. It only returns an associative array.
If you need the numeric indices, use
Замечание: Эта функция устанавливает NULL-поля
в значение NULL PHP.
pg_fetch_assoc() is NOT significantly
slower than using pg_fetch_row(), and
is significantly easier to use.
row became optional in PHP 4.1.0.
An array indexed associatively (by field name).
Each value in the array is represented as a
string. Database NULL
values are returned as NULL.
FALSE is returned if row exceeds the number
of rows in the set, there are no more rows, or on any other error.