<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >PDOStatement->setFetchMode()</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="PDO Functions" HREF="ref.pdo.html"><LINK REL="PREVIOUS" TITLE="PDOStatement->setAttribute()" HREF="function.pdostatement-setattribute.html"><LINK REL="NEXT" TITLE="Phar archive stream and classes" HREF="ref.phar.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.pdostatement-setattribute.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="ref.phar.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.PDOStatement-setFetchMode" ></A >PDOStatement->setFetchMode()</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN178154" ></A ><P > (no version information, might be only in CVS)</P >PDOStatement->setFetchMode() -- Set the default fetch mode for this statement </DIV ><DIV CLASS="refsect1" ><A NAME="AEN178157" ></A ><H2 >说明</H2 >class <B CLASS="classname" >PDOStatement</B > { <BR ></BR >bool <B CLASS="methodname" >setFetchMode</B > ( int mode )<BR ></BR >}class <B CLASS="classname" >PDOStatement</B > { <BR ></BR >bool <B CLASS="methodname" >setFetchMode</B > ( int PDO::FETCH_COLUMN, int colno )<BR ></BR >}class <B CLASS="classname" >PDOStatement</B > { <BR ></BR >bool <B CLASS="methodname" >setFetchMode</B > ( int PDO::FETCH_CLASS, string classname, array ctorargs )<BR ></BR >}class <B CLASS="classname" >PDOStatement</B > { <BR ></BR >bool <B CLASS="methodname" >setFetchMode</B > ( int PDO::FETCH_INTO, object object )<BR ></BR >}</DIV ><DIV CLASS="refsect1" ><A NAME="AEN178207" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >mode</CODE ></DT ><DD ><P > The fetch mode must be one of the <TT CLASS="literal" >PDO::FETCH_*</TT > constants. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN178217" ></A ><H2 >返回值</H2 ><P > Returns <TT CLASS="literal" >1</TT > on success or <TT CLASS="constant" ><B >FALSE</B ></TT > on failure. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN178222" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN178225" ></A ><P ><B >例 1. Setting the fetch mode</B ></P ><P > The following example demonstrates how <A HREF="function.pdostatement-setfetchmode.html" >PDOStatement->setFetchMode()</A > changes the default fetch mode for a PDOStatement object. </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$sql </font><font color="#007700">= </font><font color="#DD0000">'SELECT name, colour, calories FROM fruit'</font><font color="#007700">;<br /></font><font color="#0000BB">try </font><font color="#007700">{<br /> </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">$dbh</font><font color="#007700">-></font><font color="#0000BB">query</font><font color="#007700">(</font><font color="#0000BB">$sql</font><font color="#007700">);<br /> </font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">$stmt</font><font color="#007700">-></font><font color="#0000BB">setFetchMode</font><font color="#007700">(</font><font color="#0000BB">PDO</font><font color="#007700">::</font><font color="#0000BB">FETCH_NUM</font><font color="#007700">);<br /> while (</font><font color="#0000BB">$row </font><font color="#007700">= </font><font color="#0000BB">$stmt</font><font color="#007700">-></font><font color="#0000BB">fetch</font><font color="#007700">()) {<br /> print </font><font color="#0000BB">$row</font><font color="#007700">[</font><font color="#0000BB">0</font><font color="#007700">] . </font><font color="#DD0000">"\t" </font><font color="#007700">. </font><font color="#0000BB">$row</font><font color="#007700">[</font><font color="#0000BB">1</font><font color="#007700">] . </font><font color="#DD0000">"\t" </font><font color="#007700">. </font><font color="#0000BB">$row</font><font color="#007700">[</font><font color="#0000BB">2</font><font color="#007700">] . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br /> }<br />}<br /></font><font color="#0000BB">catch </font><font color="#007700">(</font><font color="#0000BB">PDOException $e</font><font color="#007700">) {<br /> print </font><font color="#0000BB">$e</font><font color="#007700">-></font><font color="#0000BB">getMessage</font><font color="#007700">();<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >上例将输出:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >apple red 150 banana yellow 250 orange orange 300 kiwi brown 75 lemon yellow 25 pear green 150 watermelon pink 90</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </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.pdostatement-setattribute.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="ref.phar.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >PDOStatement->setAttribute()</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.pdo.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Phar archive stream and classes</TD ></TR ></TABLE ></DIV ></BODY ></HTML >