# fdf_open

(PHP 4, PHP 5)

fdf_open — Open a FDF document

### Description

resource fdf_open ( string `$filename` )

Opens a file with form data.

You can also use fdf_open_string() to process the results of a PDF form POST request.

### Parameters

`filename`

  Path to the FDF file. This file must contain the data as returned from a PDF form or created using fdf_create() and fdf_save().

### Return Values

Returns a FDF document handle, or `FALSE` on error.

### Examples

Example#1 Accessing the form data

`<?php
// Save the FDF data into a temp file
$fdffp = fopen("test.fdf", "w");
fwrite($fdffp, $HTTP_FDF_DATA, strlen($HTTP_FDF_DATA));
fclose($fdffp);
// Open temp file and evaluate data
$fdf = fdf_open("test.fdf");
/* ... */
fdf_close($fdf);
?>`

### See Also

- fdf_open_string()
- fdf_close()
- fdf_create()
- fdf_save()