(PHP 4 >= 4.0.2, PHP 5)
fdf_set_opt — Sets an option of a field
$fdf_document
, string $fieldname
, int $element
, string $str1
, string $str2
)Sets options of the given field.
fdf_document
The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
fieldname
Name of the FDF field, as a string.
element
str1
str2
成功时返回 TRUE， 或者在失败时返回 FALSE.