<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >fbsql_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="FrontBase Functions" HREF="ref.fbsql.html"><LINK REL="PREVIOUS" TITLE="fbsql_rows_fetched" HREF="function.fbsql-rows-fetched.html"><LINK REL="NEXT" TITLE="fbsql_set_characterset" HREF="function.fbsql-set-characterset.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.fbsql-rows-fetched.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.fbsql-set-characterset.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.fbsql-select-db" ></A >fbsql_select_db</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN60606" ></A ><P > (PHP 4 >= 4.0.6, PHP 5)</P >fbsql_select_db -- Select a FrontBase database</DIV ><DIV CLASS="refsect1" ><A NAME="AEN60609" ></A ><H2 >说明</H2 >bool <B CLASS="methodname" >fbsql_select_db</B > ( [string database_name [, resource link_identifier]] )<BR ></BR ><P > Sets the current active database on the given link identifier. </P ><P > The client contacts FBExec to obtain the port number to use for the connection to the database. If the database name is a number the system will use that as a port number and it will not ask FBExec for the port number. The FrontBase server can be stared as FRontBase -FBExec=No -port=<port number> <database name>. </P ><P > Every subsequent call to <A HREF="function.fbsql-query.html" ><B CLASS="function" >fbsql_query()</B ></A > will be made on the active database. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN60624" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >database_name</CODE ></DT ><DD ><P > The name of the database to be selected. </P ><P > If the database is protected with a database password, the you must call <A HREF="function.fbsql-database-password.html" ><B CLASS="function" >fbsql_database_password()</B ></A > before selecting the database. </P ></DD ><DT ><CODE CLASS="parameter" > link_identifier</CODE ></DT ><DD ><P >A FrontBase link identifier returned by <A HREF="function.fbsql-connect.html" ><B CLASS="function" >fbsql_connect()</B ></A > or <A HREF="function.fbsql-pconnect.html" ><B CLASS="function" >fbsql_pconnect()</B ></A >.</P ><P >If optional and not specified, the function will try to find an open link to the FrontBase server and if no such link is found it will try to create one as if <A HREF="function.fbsql-connect.html" ><B CLASS="function" >fbsql_connect()</B ></A > was called with no arguments</P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN60644" ></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="AEN60649" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.fbsql-connect.html" ><B CLASS="function" >fbsql_connect()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.fbsql-pconnect.html" ><B CLASS="function" >fbsql_pconnect()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.fbsql-database-password.html" ><B CLASS="function" >fbsql_database_password()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.fbsql-query.html" ><B CLASS="function" >fbsql_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.fbsql-rows-fetched.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.fbsql-set-characterset.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >fbsql_rows_fetched</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.fbsql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >fbsql_set_characterset</TD ></TR ></TABLE ></DIV ></BODY ></HTML >