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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<chapter xml:id="fdf.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.examples;
<para>
The following examples shows just the evaluation of form data.
<example>
<title>Evaluating a FDF document</title>
<programlisting role="php">
<![CDATA[
<?php
// Open fdf from input string provided by the extension
// The pdf form contained several input text fields with the names
// volume, date, comment, publisher, preparer, and two checkboxes
// show_publisher and show_preparer.
$fdf = fdf_open_string($HTTP_FDF_DATA);
$volume = fdf_get_value($fdf, "volume");
echo "The volume field has the value '<b>$volume</b>'<br />";
$date = fdf_get_value($fdf, "date");
echo "The date field has the value '<b>$date</b>'<br />";
$comment = fdf_get_value($fdf, "comment");
echo "The comment field has the value '<b>$comment</b>'<br />";
if (fdf_get_value($fdf, "show_publisher") == "On") {
$publisher = fdf_get_value($fdf, "publisher");
echo "The publisher field has the value '<b>$publisher</b>'<br />";
} else
echo "Publisher shall not be shown.<br />";
if (fdf_get_value($fdf, "show_preparer") == "On") {
$preparer = fdf_get_value($fdf, "preparer");
echo "The preparer field has the value '<b>$preparer</b>'<br />";
} else
echo "Preparer shall not be shown.<br />";
fdf_close($fdf);
?>
]]>
</programlisting>
</example>
</para>
</chapter>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
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