(PHP 3 >= 3.0.6, PHP 4, PHP 5)
fdf_save -- Save a FDF document
Description
bool 
fdf_save ( resource fdf_document [, string filename] )
   The fdf_save() function saves a FDF document.
   The resulting FDF will be written to filename. 
   Without a filename fdf_save()
   will write the FDF to the default PHP output stream.
  
   See also fdf_save_string(),
   fdf_create() and 
   fdf_close().