The fdf_open_string() function reads form data
from a string. fdf_data
must contain the data
as returned from a PDF form or created using fdf_create()
and fdf_save_string().
You can fdf_open_string() together with
$HTTP_FDF_DATA
to process fdf form input
from a remote client.
See also fdf_open(), fdf_close(), fdf_create() and fdf_save_string().