pg_field_is_null Test if a field is SQL NULL &reftitle.description; intpg_field_is_null resourceresult introw mixedfield intpg_field_is_null resourceresult mixedfield pg_field_is_null tests if a field in a PostgreSQL result resource is SQL NULL or not. This function used to be called pg_fieldisnull. &reftitle.parameters; result PostgreSQL query result resource, returned by pg_query, pg_query_params or pg_execute (among others). row Row number in result to fetch. Rows are numbered from 0 upwards. If omitted, current row is fetched. field Field number (starting from 0) as an integer or the field name as a string. &reftitle.returnvalues; Returns 1 if the field in the given row is SQL NULL, 0 if not. &false; is returned if the row is out of range, or upon any other error. &reftitle.examples; ]]>