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  <refentry id="function.base64-decode">
   <refnamediv>
    <refname>base64_decode</refname>
    <refpurpose>Decodes data encoded with MIME base64</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>string</type><methodname>base64_decode</methodname>
      <methodparam><type>string</type><parameter>encoded_data</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>base64_decode</function> decodes
     <parameter>encoded_data</parameter> and returns the original
     data or &false; on failure. The returned data may be binary.
    </para>
    <para>
     <example>
      <title><function>base64_decode</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
$str = 'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==';
echo base64_decode($str);
?>
]]>
      </programlisting>
      <para>
       This example will produce:
      </para>
      <screen>
<![CDATA[
This is an encoded string
]]>
      </screen>
     </example>
    </para>
    <para>
     See also <function>base64_encode</function> and
     <ulink url="&url.rfc;2045">RFC 2045</ulink> section 6.8.
    </para>
   </refsect1>
  </refentry>

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