<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >base64_encode</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="Manual do PHP" HREF="index.html"><LINK REL="UP" TITLE="URL" HREF="ref.url.html"><LINK REL="PREVIOUS" TITLE="base64_decode" HREF="function.base64-decode.html"><LINK REL="NEXT" TITLE="get_headers" HREF="function.get-headers.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></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" >Manual do PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.base64-decode.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.get-headers.html" ACCESSKEY="N" >Próxima</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="AEN228990" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >base64_encode -- Codifica dados com MIME base64</DIV ><DIV CLASS="refsect1" ><A NAME="AEN228993" ></A ><H2 >Descrição</H2 >string <B CLASS="methodname" >base64_encode</B > ( string dados )<BR ></BR ><P > <B CLASS="function" >base64_encode()</B > returns <CODE CLASS="parameter" >Dado</CODE > codificado com base64. Esta codificação é designada para que dados binários durem no transporte sobre camadas de transorte que não são 8-bit clean, como mensagens de e-mail. </P ><P > Dados codificados na Base-64 tem aproximadamente 33% mais espaço que dos dados originais. </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN229006" ></A ><P ><B >Exemplo 1. Exemplo <B CLASS="function" >base64_encode()</B ></B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /> $str </font><font color="#007700">= </font><font color="#DD0000">'This is an encoded string'</font><font color="#007700">;<br /> echo </font><font color="#0000BB">base64_encode</font><font color="#007700">(</font><font color="#0000BB">$str</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P > Este exemplo irá mostrar: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > Veja também <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 > e RFC-2045 seção 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" >Anterior</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Principal</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.get-headers.html" ACCESSKEY="N" >Próxima</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" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >get_headers</TD ></TR ></TABLE ></DIV ></BODY ></HTML >