<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >imap_fetchheader</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="IMAP, POP3 and NNTP Functions" HREF="ref.imap.html"><LINK REL="PREVIOUS" TITLE="imap_fetchbody" HREF="function.imap-fetchbody.html"><LINK REL="NEXT" TITLE="imap_fetchstructure" HREF="function.imap-fetchstructure.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" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.imap-fetchbody.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.imap-fetchstructure.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.imap-fetchheader" ></A >imap_fetchheader</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN96171" ></A ><P > (PHP 3 >= 3.0.3, PHP 4, PHP 5)</P >imap_fetchheader -- Returns header for a message</DIV ><DIV CLASS="refsect1" ><A NAME="AEN96174" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >imap_fetchheader</B > ( resource imap_stream, int msg_number [, int options] )<BR ></BR ><P > This function causes a fetch of the complete, unfiltered <A HREF="http://www.faqs.org/rfcs/rfc2822" TARGET="_top" >RFC2822</A > format header of the specified message. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN96190" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" > imap_stream</CODE ></DT ><DD ><P >An IMAP stream returned by <A HREF="function.imap-open.html" ><B CLASS="function" >imap_open()</B ></A >.</P ></DD ><DT ><CODE CLASS="parameter" >msg_number</CODE ></DT ><DD ><P > The message number </P ></DD ><DT ><CODE CLASS="parameter" >options</CODE ></DT ><DD ><P > The possible <CODE CLASS="parameter" >options</CODE > are: <P ></P ><UL ><LI ><P > <TT CLASS="constant" ><B >FT_UID</B ></TT > - The <CODE CLASS="parameter" >msgno</CODE > argument is a UID </P ></LI ><LI ><P > <TT CLASS="constant" ><B >FT_INTERNAL</B ></TT > - The return string is in "internal" format, without any attempt to canonicalize to CRLF newlines </P ></LI ><LI ><P > <TT CLASS="constant" ><B >FT_PREFETCHTEXT</B ></TT > - The RFC822.TEXT should be pre-fetched at the same time. This avoids an extra RTT on an IMAP connection if a full message text is desired (e.g. in a "save to local file" operation) </P ></LI ></UL > </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN96222" ></A ><H2 >返回值</H2 ><P > Returns the header of the specified message as a text string. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN96225" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.imap-fetch-overview.html" ><B CLASS="function" >imap_fetch_overview()</B ></A ></TD ></TR ></TBODY ></TABLE ><P ></P > </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.imap-fetchbody.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.imap-fetchstructure.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >imap_fetchbody</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.imap.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >imap_fetchstructure</TD ></TR ></TABLE ></DIV ></BODY ></HTML >