   #PHP Manual Forms Data Format functions fdf_open_string
   fdf_remove_item

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                                   fdf_open

   (PHP 3>= 3.0.6, PHP 4 )
   fdf_open -- Open a FDF document

Description

   resource fdf_open ( 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
   <?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() and fdf_save().
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