<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >yp_first</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="YP/NIS Functions" HREF="ref.nis.html"><LINK REL="PREVIOUS" TITLE="yp_errno" HREF="function.yp-errno.html"><LINK REL="NEXT" TITLE="yp_get_default_domain" HREF="function.yp-get-default-domain.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.yp-errno.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.yp-get-default-domain.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.yp-first" ></A >yp_first</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN249120" ></A ><P > (PHP 3 >= 3.0.7, PHP 4, PHP 5 <= 5.0.4)</P >yp_first -- Returns the first key-value pair from the named map</DIV ><DIV CLASS="refsect1" ><A NAME="AEN249123" ></A ><H2 >说明</H2 >array <B CLASS="methodname" >yp_first</B > ( string domain, string map )<BR ></BR ><P > Gets the first key-value pair from the named <CODE CLASS="parameter" >map</CODE > in the named <CODE CLASS="parameter" >domain</CODE >. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN249137" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >domain</CODE ></DT ><DD ><P > The NIS domain name. </P ></DD ><DT ><CODE CLASS="parameter" >map</CODE ></DT ><DD ><P > The NIS map. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN249151" ></A ><H2 >返回值</H2 ><P > Returns the first key-value pair as an array on success, or <TT CLASS="constant" ><B >FALSE</B ></TT > on errors. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN249155" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN249158" ></A ><P ><B >例 1. Example for the NIS first</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$entry </font><font color="#007700">= </font><font color="#0000BB">yp_first</font><font color="#007700">(</font><font color="#0000BB">$domain</font><font color="#007700">, </font><font color="#DD0000">"passwd.byname"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$key </font><font color="#007700">= </font><font color="#0000BB">key</font><font color="#007700">(</font><font color="#0000BB">$entry</font><font color="#007700">);<br /></font><font color="#0000BB">$value </font><font color="#007700">= </font><font color="#0000BB">$entry</font><font color="#007700">[</font><font color="#0000BB">$key</font><font color="#007700">];<br /><br />echo </font><font color="#DD0000">"First entry in this map has key " </font><font color="#007700">. </font><font color="#0000BB">$key </font><font color="#007700">. </font><font color="#DD0000">" and value " </font><font color="#007700">. </font><font color="#0000BB">$value</font><font color="#007700">;<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN249161" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.yp-next.html" ><B CLASS="function" >yp_next()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.yp-get-default-domain.html" ><B CLASS="function" >yp_get_default_domain()</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.yp-errno.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.yp-get-default-domain.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >yp_errno</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.nis.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >yp_get_default_domain</TD ></TR ></TABLE ></DIV ></BODY ></HTML >