pg_field_is_null

Description

int pg_field_is_null ( resource result, int row, mixed field)

pg_field_is_null() tests if a field is NULL or not_ It returns 1 if the field in the given row is NULL_ It returns 0 if the field in the given row is NOT NULL_ Field can be specified as column index (number) or fieldname (string)_ Row numbering starts at 0_

Ejemplo 1_ pg_field_is_null() example <?php $dbconn = pg_connect("dbname=publisher") or die ("Could not connect"); $res = pg_query($dbconn, "select * from authors where author = 'Orwell'"); if ($res) { if (pg_field_is_null($res, 0, "year") == 1) { echo "The value of the field year is null_\n"; } if (pg_field_is_null($res, 0, "year") == 0) { echo "The value of the field year is not null_\n"; } } ?>