(PHP 4, PHP 5 < 5.3.0, PECL fdf SVN)
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.
fdf_documenturltarget_frame示例 #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);
?>