<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >msql_select_db</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="mSQL Functions" HREF="ref.msql.html"><LINK REL="PREVIOUS" TITLE="msql_result" HREF="function.msql-result.html"><LINK REL="NEXT" TITLE="msql_tablename" HREF="function.msql-tablename.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.msql-result.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.msql-tablename.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.msql-select-db" ></A >msql_select_db</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN131087" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >msql_select_db -- Select mSQL database</DIV ><DIV CLASS="refsect1" ><A NAME="AEN131090" ></A ><H2 >说明</H2 >bool <B CLASS="methodname" >msql_select_db</B > ( string database_name [, resource link_identifier] )<BR ></BR ><P > <B CLASS="function" >msql_select_db()</B > sets the current active database on the server that's associated with the specified <CODE CLASS="parameter" >link_identifier</CODE >. </P ><P > Subsequent calls to <A HREF="function.msql-query.html" ><B CLASS="function" >msql_query()</B ></A > will be made on the active database. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN131106" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >database_name</CODE ></DT ><DD ><P > The database name. </P ></DD ><DT ><CODE CLASS="parameter" > link_identifier</CODE ></DT ><DD ><P >mSQL 的连接标识符。如果没有指定,默认使用最后被 <A HREF="function.msql-connect.html" ><B CLASS="function" >msql_connect()</B ></A > 打开的连接。如果没有找到该连接,函数会尝试通过调用 <A HREF="function.msql-connect.html" ><B CLASS="function" >msql_connect()</B ></A > 建立连接并使用它。 </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN131122" ></A ><H2 >返回值</H2 ><P > 如果成功则返回 <TT CLASS="constant" ><B >TRUE</B ></TT >,失败则返回 <TT CLASS="constant" ><B >FALSE</B ></TT >。 </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN131127" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.msql-connect.html" ><B CLASS="function" >msql_connect()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.msql-pconnect.html" ><B CLASS="function" >msql_pconnect()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.msql-query.html" ><B CLASS="function" >msql_query()</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.msql-result.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.msql-tablename.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >msql_result</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.msql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >msql_tablename</TD ></TR ></TABLE ></DIV ></BODY ></HTML >