php-doc-en/reference/fdf/functions/fdf-open.xml
2003-12-11 15:42:10 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<!-- splitted from ./en/functions/fdf.xml, last change in rev 1.2 -->
<refentry id="function.fdf-open">
<refnamediv>
<refname>fdf_open</refname>
<refpurpose>Open a FDF document</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>resource</type><methodname>fdf_open</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>
The <function>fdf_open</function> function opens
a file with form data. This file must contain the data as returned
from a PDF form or created using <function>fdf_create</function> and
<function>fdf_save</function>.
</para>
<para>
You can process the results of a PDF form POST request by writing
the data received in <varname>$HTTP_FDF_DATA</varname> to a file
and open it using <function>fdf_open</function>. Starting with PHP 4.3
you can also use <function>fdf_open_string</function> which handles temporary
file creation and cleanup for you.
</para>
<para>
<example>
<title>Accessing the form data</title>
<programlisting role="php">
<![CDATA[
<?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);
?>
]]>
</programlisting>
</example>
</para>
<para>
See also
<function>fdf_open_string</function>,
<function>fdf_close</function>,
<function>fdf_create</function> and
<function>fdf_save</function>.
</para>
</refsect1>
</refentry>
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