(PHP 4, PHP 5, PHP 7)
fdf_set_ap — Set the appearance of a field
$fdf_document
, string $field_name
, int $face
, string $filename
, int $page_number
)Sets the appearance of a field (i.e. the value of the /AP key).
fdf_documentThe FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
field_name
face
The possible values FDFNormalAP,
FDFRolloverAP and
FDFDownAP.
filename
page_number
成功时返回 TRUE， 或者在失败时返回 FALSE。