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



fdf_set_flags — Sets flags for a field in the FDF document.


bool fdf_set_flags(fdfdoc, fieldname, whichflags, newflags);
resource fdfdoc: FDF document identifier
string fieldname: Field name
int whichflags: Flags to set
int newflags: Flag value


TRUE on success; FALSE on error


Sets the value of the following flags, which are specified in whichflags : FDFFf, FDFSetFf, FDFClearFf, FDFFlags, FDFSetF, FDFClearF. If the field doesn't exist, it's created; otherwise, the current value is replaced by the new value.

newflags is a bitmask of the following:

1 Invisible. Specifies how an annotation is displayed when the corresponding annotation handler is not available.
2 Hidden. Determines whether the annotation is to be shown.
4 Print. Indicates whether the annotation should be printed.
8 No Zoom. Indicates that if the annotation has an appearance, the appearance should not zoom as the page is magnified in the viewer.
16 No Rotate. Indicates that if the annotation has an appearance, the appearance should not be rotated with respect to the page before displaying the appearance.
32 No View. Indicates that if the annotation has an appearance, the appearance should be used only for printing.
64 Read-only. Indicates that the annotation should display, but not interact with the user.


Existing since version 4.0.2


Example 286. Create an FDF file

// create the FDF
$outfdf = fdf_create();

// set a field value
fdf_set_value($outfdf, "volume", $volume, 0);

// set the result file
fdf_set_file($outfdf, "http://testserver/testfdf/results.pdf");

// sets a hidden field
fdf_set_flags($outfdf, "hidden", FDFFlags, 3);

// save file
fdf_save($outfdf, "outtest.fdf");

// send to client
Header("Content-type: application/vnd.fdf");
$fp = fopen("outtest.fdf", "r");

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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