(PHP 4 >= 4.3.0, PHP 5, PHP 7)
fdf_get_ap — Get the appearance of a field
$fdf_document
, string $field
, int $face
, string $filename
) : bool
Gets the appearance of a field (i.e. the value of
the /AP key) and stores it in a file.
fdf_documentThe FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
field
face
The possible values are FDFNormalAP,
FDFRolloverAP and FDFDownAP.
filenameThe appearance will be stored in this parameter.
成功时返回 TRUE， 或者在失败时返回 FALSE。