Sophie

Sophie

distrib > Mandriva > 2008.1 > x86_64 > by-pkgid > 05cd670d8a02b2b4a0ffb1756f2e8308 > files > 8017

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

<!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&nbsp;--&nbsp;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
>&#13;     <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
>&#13;     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
>&#13;     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
>&#13;     <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">&lt;?php<br />&nbsp;&nbsp;&nbsp;&nbsp;$link </font><font color="#007700">= </font><font color="#0000BB">mysql_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"mysql_user"</font><font color="#007700">, </font><font color="#DD0000">"mysql_password"</font><font color="#007700">)<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;or die(</font><font color="#DD0000">"Could not connect: " </font><font color="#007700">. </font><font color="#0000BB">mysql_error</font><font color="#007700">());<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$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 />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;or die(</font><font color="#DD0000">"Could not query: . mysql_error());<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;echo mysql_result($result,2); // outputs third employee's name<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;mysql_close($link);<br />?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
    </P
><P
>&#13;     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
>