<HTML ><HEAD ><TITLE >base64_encode</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="PHP Manual" HREF="index.html"><LINK REL="UP" TITLE="URL Functions" HREF="ref.url.html"><LINK REL="PREVIOUS" TITLE="base64_decode" HREF="function.base64-decode.html"><LINK REL="NEXT" TITLE="get_meta_tags" HREF="function.get-meta-tags.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=ISO-8859-1"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.base64-decode.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.get-meta-tags.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.base64-encode" ></A >base64_encode</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN93435" ></A ><P > (PHP 3, PHP 4 )</P >base64_encode -- Encodes data with MIME base64</DIV ><DIV CLASS="refsect1" ><A NAME="AEN93438" ></A ><H2 >Description</H2 >string <B CLASS="methodname" >base64_encode</B > ( string data)<BR ></BR ><P > <B CLASS="function" >base64_encode()</B > returns <TT CLASS="parameter" ><I >data</I ></TT > encoded with base64. This encoding is designed to make binary data survive transport through transport layers that are not 8-bit clean, such as mail bodies. </P ><P > Base64-encoded data takes about 33% more space than the original data.</P ><P > See also: <A HREF="function.base64-decode.html" ><B CLASS="function" >base64_decode()</B ></A >, <A HREF="function.chunk-split.html" ><B CLASS="function" >chunk_split()</B ></A >, <A HREF="http://www.faqs.org/rfcs/rfc2045.html" TARGET="_top" >RFC 2045</A > section 6.8. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.base64-decode.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.get-meta-tags.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >base64_decode</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.url.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >get_meta_tags</TD ></TR ></TABLE ></DIV ></BODY ></HTML >