What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.



fdf_open — Opens a new FDF document.


resource fdf_open(filename);
string filename: Filename


FDF document identifier or FALSE on error


Opens a file with form data. This file must contain the data as returned from a PDF form. Currently, the file has to be created manually by using fopen() and writing the content of HTTP_FDF_DATA with fwrite() into it. No comparable mechanism exists like that in HTML, where form data creates a variable for each input field.


Existing since versions 3.0.6 and 4.0


Example 282. Create an FDF document identifier

// open and write the result data
$fdffp = fopen("test.fdf", "w");
fwrite($fdffp, $HTTP_FDF_DATA, strlen($HTTP_FDF_DATA));

// reopen the file with the results
$fdf = fdf_open("test.fdf");

// display/process etc

// close the file

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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