pg_field_is_null

Description

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.

Example 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"; } } ?>