(PHP 4, PHP 5)
fdf_set_file — Set PDF document to display FDF data in
Selects a different PDF document to display the form results in then the form it originated from.
The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
Should be given as an absolute URL.
Use this parameter to specify the frame in which the document will be displayed. You can also set the default value for this parameter using fdf_set_target_frame().
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 Passing FDF data to a second form
<?php
/* set content type for Adobe FDF */
fdf_header();
/* start new fdf */
$fdf = fdf_create();
/* set field "foo" to value "bar" */
fdf_set_value($fdf, "foo", "bar");
/* tell client to display FDF data using "fdf_form.pdf" */
fdf_set_file($fdf, "http://www.example.com/fdf_form.pdf");
/* output fdf */
fdf_save($fdf);
/* clean up */
fdf_close($fdf);
?>