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<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.10 $ -->
<refentry id="function.iconv-mime-decode-headers">
<refnamediv>
<refname>iconv_mime_decode_headers</refname>
<refpurpose>
Decodes multiple <literal>MIME</literal> header fields at once
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>array</type><methodname>iconv_mime_decode_headers</methodname>
<methodparam><type>string</type><parameter>encoded_headers</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>mode</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>charset</parameter></methodparam>
</methodsynopsis>
<para>
Returns an associative array that holds a whole set of
<literal>MIME</literal> header fields specified by
<parameter>encoded_headers</parameter> on success, or &false;
if an error occurs during the decoding.
</para>
<para>
Each key of the return value represents an individual
field name and the corresponding element represents a field value.
If more than one field of the same name are present,
<function>iconv_mime_decode_headers</function> automatically incorporates
them into a numerically indexed array in the order of occurrence.
</para>
<para>
<parameter>mode</parameter> determines the behaviour in the event
<function>iconv_mime_decode_headers</function> encounters a malformed
<literal>MIME</literal> header field. You can specify any combination
of the following bitmasks.
<table>
<title>Bitmasks acceptable to <function>iconv_mime_decode_headers</function></title>
<tgroup cols="3">
<thead>
<row>
<entry>Value</entry>
<entry>Constant</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>1</entry>
<entry>ICONV_MIME_DECODE_STRICT</entry>
<entry>
If set, the given header is decoded in full conformance with the
standards defined in <ulink url="&url.rfc;2047">RFC2047</ulink>.
This option is disabled by default because there are a lot of
broken mail user agents that don't follow the specification and don't
produce correct <literal>MIME</literal> headers.
</entry>
</row>
<row>
<entry>2</entry>
<entry>ICONV_MIME_DECODE_CONTINUE_ON_ERROR</entry>
<entry>
If set, <function>iconv_mime_decode_headers</function>
attempts to ignore any grammatical errors and continue to process
a given header.
</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
<para>
The optional <parameter>charset</parameter> parameter specifies the
character set to represent the result by. If omitted,
<link linkend="iconv.configuration">iconv.internal_charset</link>
will be used.
</para>
<example>
<title><function>iconv_mime_decode_headers</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$headers_string = <<<EOF
Subject: =?UTF-8?B?UHLDvGZ1bmcgUHLDvGZ1bmc=?=
To: example@example.com
Date: Thu, 1 Jan 1970 00:00:00 +0000
Message-Id: <example@example.com>
Received: from localhost (localhost [127.0.0.1]) by localhost
with SMTP id example for <example@example.com>
Thu, 1 Jan 1970 00:00:00 +0000 (UTC)
(envelope-from example-return-0000-example=example.com@example.com)
Received: (qmail 0 invoked by uid 65534); 1 Thu 2003 00:00:00 +0000
EOF;
$headers = iconv_mime_decode_headers($headers_string, 0, "ISO-8859-1");
print_r($headers);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Array
(
[Subject] => Prfung Prfung
[To] => example@example.com
[Date] => Thu, 1 Jan 1970 00:00:00 +0000
[Message-Id] => <example@example.com>
[Received] => Array
(
[0] => from localhost (localhost [127.0.0.1]) by localhost with SMTP id example for <example@example.com>; Thu, 1 Jan 1970 00:00:00 +0000 (UTC) (envelope-from example-return-0000-example=example.com@example.com)
[1] => (qmail 0 invoked by uid 65534); 1 Thu 2003 00:00:00 +0000
)
)
]]>
</screen>
</example>
<para>
See also <function>iconv_mime_decode</function>,
<function>mb_decode_mimeheader</function>,
<function>imap_mime_header_decode</function>,
<function>imap_base64</function>
and <function>imap_qprint</function>.
</para>
</refsect1>
</refentry>
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