(PHP 3>= 3.0.6, PHP 4 )
fdf_open -- Open a FDF document
( string filename)
The fdf_open() function opens a file with form data. This file must contain the data as returned from a PDF form or created using fdf_create() and fdf_save().
You can process the results of a PDF form POST request by writing the data received in $HTTP_FDF_DATA to a file and open it using fdf_open(). Starting with PHP 4.3 you can also use fdf_open_string() which handles temporary file creation and cleanup for you.
Example 1. Accessing the form data
// Save the FDF data into a temp file
$fdffp = fopen("test.fdf", "w");
fwrite($fdffp, $HTTP_FDF_DATA, strlen($HTTP_FDF_DATA));
// Open temp file and evaluate data
$fdf = fdf_open("test.fdf");
See also fdf_open_string(), fdf_close(), fdf_create() and fdf_save().