php 한글 메뉴얼 도움말 검색 사이트 Test if a field is nullable [function.ingres-field-nullable]

bool ingres_field_nullable ( resource $result , int $index )

Test if a field is nullable.

Note: Related Configurations

See ingres.array_index_start in Runtime Configuration

result

The query result identifier

index

index is the field whose nullability will be retrieved.

The possible values of index depend upon the value of ingres.array_index_start. If ingres.array_index_start is 1 (the default) then index must be between 1 and the value returned by ingres_num_fields(). If ingres.array_index_start is 0 then index must be between 0 and ingres_num_fields() - 1.

ingres_field_nullable() returns TRUE if the field can be set to the NULL value and FALSE if it cannot