(PHP 4 >= 4.0.2, PHP 5)
fdf_set_flags — Sets a flag of a field
Sets certain flags of the given field.
The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
Name of the FDF field, as a string.
성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.