<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >sybase_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="Sybase Functions" HREF="ref.sybase.html"><LINK REL="PREVIOUS" TITLE="sybase_result" HREF="function.sybase-result.html"><LINK REL="NEXT" TITLE="sybase_set_message_handler" HREF="function.sybase-set-message-handler.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.sybase-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.sybase-set-message-handler.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.sybase-select-db" ></A >sybase_select_db</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN233195" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >sybase_select_db -- Selects a Sybase database</DIV ><DIV CLASS="refsect1" ><A NAME="AEN233198" ></A ><H2 >Description</H2 >bool <B CLASS="methodname" >sybase_select_db</B > ( string database_name [, resource link_identifier] )<BR ></BR ><P > <B CLASS="function" >sybase_select_db()</B > sets the current active database on the server that's associated with the specified link identifier. If no link identifier is specified, the last opened link is assumed. If no link is open, the function will try to establish a link as if <A HREF="function.sybase-connect.html" ><B CLASS="function" >sybase_connect()</B ></A > was called, and use it. </P ><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 ><P > Every subsequent call to <A HREF="function.sybase-query.html" ><B CLASS="function" >sybase_query()</B ></A > will be made on the active database. </P ><P > See also <A HREF="function.sybase-connect.html" ><B CLASS="function" >sybase_connect()</B ></A >, <A HREF="function.sybase-pconnect.html" ><B CLASS="function" >sybase_pconnect()</B ></A > and <A HREF="function.sybase-query.html" ><B CLASS="function" >sybase_query()</B ></A > </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.sybase-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.sybase-set-message-handler.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >sybase_result</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.sybase.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >sybase_set_message_handler</TD ></TR ></TABLE ></DIV ></BODY ></HTML >