fdf_get_ap

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

fdf_get_ap — Get the appearance of a field

bool fdf_get_ap ( resource $fdf_document , string $field , int $face , string $filename )

Gets the appearance of a field (i.e. the value of the /AP key) and stores it in a file.

fdf_document: The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
field
face: The possible values are FDFNormalAP, FDFRolloverAP and FDFDownAP.
filename: The appearance will be stored in this parameter.

成功时返回 TRUE，或者在失败时返回 FALSE。