<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Memcache::get</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="Memcache Functions" HREF="ref.memcache.html"><LINK REL="PREVIOUS" TITLE="Memcache::flush" HREF="function.memcache-flush.html"><LINK REL="NEXT" TITLE="Memcache::getExtendedStats" HREF="function.memcache-getextendedstats.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.memcache-flush.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.memcache-getextendedstats.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.Memcache-get" ></A >Memcache::get</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN118278" ></A ><P > (no version information, might be only in CVS)</P >Memcache::get -- Retrieve item from the server</DIV ><DIV CLASS="refsect1" ><A NAME="AEN118281" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >Memcache::get</B > ( string key )<BR ></BR >array <B CLASS="methodname" >Memcache::get</B > ( array keys )<BR ></BR ><P > <B CLASS="function" >Memcache::get()</B > returns previously stored data if an item with such <CODE CLASS="parameter" >key</CODE > exists on the server at this moment. </P ><P > You can pass array of keys to <B CLASS="function" >Memcache::get()</B > to get array of values. The result array will contain only found key-value pairs. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN118300" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >key</CODE ></DT ><DD ><P > </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN118309" ></A ><H2 >返回值</H2 ><P > Returns the string associated with the <CODE CLASS="parameter" >key</CODE > or <TT CLASS="constant" ><B >FALSE</B ></TT > on failure or if such <CODE CLASS="parameter" >key</CODE > was not found. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN118315" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN118318" ></A ><P ><B >例 1. <B CLASS="function" >Memcache::get()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br /></font><font color="#FF8000">/* procedural API */<br /></font><font color="#0000BB">$memcache_obj </font><font color="#007700">= </font><font color="#0000BB">memcache_connect</font><font color="#007700">(</font><font color="#DD0000">'memcache_host'</font><font color="#007700">, </font><font color="#0000BB">11211</font><font color="#007700">);<br /></font><font color="#0000BB">$var </font><font color="#007700">= </font><font color="#0000BB">memcache_get</font><font color="#007700">(</font><font color="#0000BB">$memcache_obj</font><font color="#007700">, </font><font color="#DD0000">'some_key'</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* OO API */<br /></font><font color="#0000BB">$memcache_obj </font><font color="#007700">= new </font><font color="#0000BB">Memcache</font><font color="#007700">;<br /></font><font color="#0000BB">$memcache_obj</font><font color="#007700">-></font><font color="#0000BB">connect</font><font color="#007700">(</font><font color="#DD0000">'memcache_host'</font><font color="#007700">, </font><font color="#0000BB">11211</font><font color="#007700">);<br /></font><font color="#0000BB">$var </font><font color="#007700">= </font><font color="#0000BB">$memcache_obj</font><font color="#007700">-></font><font color="#0000BB">get</font><font color="#007700">(</font><font color="#DD0000">'some_key'</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* <br />You also can use array of keys as a parameter.<br />If such item wasn't found at the server, the result<br />array simply will not include such key.<br />*/<br /><br />/* procedural API */<br /></font><font color="#0000BB">$memcache_obj </font><font color="#007700">= </font><font color="#0000BB">memcache_connect</font><font color="#007700">(</font><font color="#DD0000">'memcache_host'</font><font color="#007700">, </font><font color="#0000BB">11211</font><font color="#007700">);<br /></font><font color="#0000BB">$var </font><font color="#007700">= </font><font color="#0000BB">memcache_get</font><font color="#007700">(</font><font color="#0000BB">$memcache_obj</font><font color="#007700">, Array(</font><font color="#DD0000">'some_key'</font><font color="#007700">, </font><font color="#DD0000">'another_key'</font><font color="#007700">));<br /><br /></font><font color="#FF8000">/* OO API */<br /></font><font color="#0000BB">$memcache_obj </font><font color="#007700">= new </font><font color="#0000BB">Memcache</font><font color="#007700">;<br /></font><font color="#0000BB">$memcache_obj</font><font color="#007700">-></font><font color="#0000BB">connect</font><font color="#007700">(</font><font color="#DD0000">'memcache_host'</font><font color="#007700">, </font><font color="#0000BB">11211</font><font color="#007700">);<br /></font><font color="#0000BB">$var </font><font color="#007700">= </font><font color="#0000BB">$memcache_obj</font><font color="#007700">-></font><font color="#0000BB">get</font><font color="#007700">(Array(</font><font color="#DD0000">'some_key'</font><font color="#007700">, </font><font color="#DD0000">'second_key'</font><font color="#007700">));<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </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.memcache-flush.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.memcache-getextendedstats.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Memcache::flush</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.memcache.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Memcache::getExtendedStats</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
