<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >mysql_result</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="MySQL 函数" HREF="ref.mysql.html"><LINK REL="PREVIOUS" TITLE="mysql_real_escape_string" HREF="function.mysql-real-escape-string.html"><LINK REL="NEXT" TITLE="mysql_select_db" HREF="function.mysql-select-db.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.mysql-real-escape-string.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.mysql-select-db.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mysql-result" ></A >mysql_result</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN136347" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >mysql_result -- 取得结果数据</DIV ><DIV CLASS="refsect1" ><A NAME="AEN136350" ></A ><H2 >说明</H2 >mixed <B CLASS="methodname" >mysql_result</B > ( resource result, int row [, mixed field] )<BR ></BR ><P > <B CLASS="function" >mysql_result()</B > 返回 MySQL 结果集中一个单元的内容。字段参数可以是字段的偏移量或者字段名,或者是字段表点字段名(tablename.fieldname)。如果给列起了别名('select foo as bar from...'),则用别名替代列名。 </P ><P > 当作用于很大的结果集时,应该考虑使用能够取得整行的函数(在下边指出)。这些函数在一次函数调用中返回了多个单元的内容,比 <B CLASS="function" >mysql_result()</B > 快得多。此外注意在字段参数中指定数字偏移量比指定字段名或者 tablename.fieldname 要快得多。 </P ><P > 调用 <B CLASS="function" >mysql_result()</B > 不能和其它处理结果集的函数混合调用。 </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN136371" ></A ><P ><B >例 1. <B CLASS="function" >mysql_result()</B > 例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /> $link </font><font color="#007700">= </font><font color="#0000BB">mysql_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"mysql_user"</font><font color="#007700">, </font><font color="#DD0000">"mysql_password"</font><font color="#007700">)<br /> or die(</font><font color="#DD0000">"Could not connect: " </font><font color="#007700">. </font><font color="#0000BB">mysql_error</font><font color="#007700">());<br /><br /> </font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">mysql_query</font><font color="#007700">(</font><font color="#DD0000">"SELECT name FROM work.employee"</font><font color="#007700">)<br /> or die(</font><font color="#DD0000">"Could not query: . mysql_error());<br /><br /> echo mysql_result($result,2); // outputs third employee's name<br /><br /> mysql_close($link);<br />?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > 推荐使用高性能的替代函数:<A HREF="function.mysql-fetch-row.html" ><B CLASS="function" >mysql_fetch_row()</B ></A >,<A HREF="function.mysql-fetch-array.html" ><B CLASS="function" >mysql_fetch_array()</B ></A >,<A HREF="function.mysql-fetch-assoc.html" ><B CLASS="function" >mysql_fetch_assoc()</B ></A > 和 <A HREF="function.mysql-fetch-object.html" ><B CLASS="function" >mysql_fetch_object()</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.mysql-real-escape-string.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.mysql-select-db.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mysql_real_escape_string</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mysql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >mysql_select_db</TD ></TR ></TABLE ></DIV ></BODY ></HTML >