(PHP 3, PHP 4 >= 4.0b1)
pg_fieldisnull -- Test if a field is
NULLDescription
int pg_fieldisnull (int result_id, int row, mixed field)
Test if a field is NULL or not. Returns 0 if the field in the
given row is not NULL. Returns 1 if the field in the given row is
NULL. Field can be specified as number or fieldname. Row
numbering starts at 0.