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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="function.base64-decode" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>base64_decode</refname>
<refpurpose>Decodes data encoded with MIME base64</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>base64_decode</methodname>
<methodparam><type>string</type><parameter>data</parameter></methodparam>
<methodparam choice="opt"><type>bool</type><parameter>strict</parameter><initializer>false</initializer></methodparam>
</methodsynopsis>
<para>
Decodes a base64 encoded <parameter>data</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>data</parameter></term>
<listitem>
<para>
The encoded data.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>strict</parameter></term>
<listitem>
<para>
Returns &false; if input contains character from outside the base64
alphabet.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the original data&return.falseforfailure;. The returned data may be
binary.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>5.2.0</entry>
<entry><parameter>strict</parameter> added</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>base64_decode</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
echo base64_decode($str);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
This is an encoded string
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>base64_encode</function></member>
<member><link xlink:href="&url.rfc;2045">RFC 2045</link> section 6.8</member>
</simplelist>
</para>
</refsect1>
</refentry>
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