<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >PDO->setAttribute()</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="PDO->rollBack()" HREF="function.pdo-rollback.html"><LINK REL="NEXT" TITLE="PDOStatement->bindColumn()" HREF="function.pdostatement-bindcolumn.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.pdo-rollback.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.pdostatement-bindcolumn.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.PDO-setAttribute" ></A >PDO->setAttribute()</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN177042" ></A ><P > (no version information, might be only in CVS)</P >PDO->setAttribute() -- Set an attribute </DIV ><DIV CLASS="refsect1" ><A NAME="AEN177045" ></A ><H2 >说明</H2 >class <B CLASS="classname" >PDO</B > { <BR ></BR >bool <B CLASS="methodname" >setAttribute</B > ( int attribute, mixed value )<BR ></BR >}<P > Sets an attribute on the database handle. Some of the available generic attributes are listed below; some drivers may make use of additional driver specific attributes. <P ></P ><UL ><LI ><P > <TT CLASS="literal" >PDO::ATTR_CASE</TT >: Force column names to a specific case. <P ></P ><UL ><LI ><P > <TT CLASS="literal" >PDO::CASE_LOWER</TT >: Force column names to lower case. </P ></LI ><LI ><P > <TT CLASS="literal" >PDO::CASE_NATURAL</TT >: Leave column names as returned by the database driver. </P ></LI ><LI ><P > <TT CLASS="literal" >PDO::CASE_UPPER</TT >: Force column names to upper case. </P ></LI ></UL > </P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ATTR_ERRMODE</TT >: Error reporting. <P ></P ><UL ><LI ><P ><TT CLASS="literal" >PDO::ERRMODE_SILENT</TT >: Just set error codes.</P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ERRMODE_WARNING</TT >: Raise <A HREF="ref.errorfunc.html#e-warning" >E_WARNING</A >.</P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ERRMODE_EXCEPTION</TT >: Throw <A HREF="language.exceptions.html" >exceptions</A >.</P ></LI ></UL > </P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ATTR_ORACLE_NULLS</TT > (available with all drivers, not just Oracle): Conversion of NULL and empty strings. <P ></P ><UL ><LI ><P ><TT CLASS="literal" >PDO::NULL_NATURAL</TT >: No conversion.</P ></LI ><LI ><P ><TT CLASS="literal" >PDO::NULL_EMPTY_STRING</TT >: Empty string is converted to <TT CLASS="constant" ><B >NULL</B ></TT >.</P ></LI ><LI ><P ><TT CLASS="literal" >PDO::NULL_TO_STRING</TT >: NULL is converted to an empty string.</P ></LI ></UL > </P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ATTR_STRINGIFY_FETCHES</TT >: Convert numeric values to strings when fetching. Requires <A HREF="language.types.boolean.html" ><B CLASS="type" >bool</B ></A >. </P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ATTR_STATEMENT_CLASS</TT >: Set user-supplied statement class derived from PDOStatement. Cannot be used with persistent PDO instances. Requires <TT CLASS="literal" >array(string classname, array(mixed constructor_args))</TT >. </P ></LI ><LI ><P ><TT CLASS="literal" >PDO::ATTR_AUTOCOMMIT</TT > (available in OCI, Firebird and MySQL): Whether to autocommit every single statement. </P ></LI ><LI ><P ><TT CLASS="literal" >PDO::MYSQL_ATTR_USE_BUFFERED_QUERY</TT > (available in MySQL): Use buffered queries. </P ></LI ></UL > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN177117" ></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="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.pdo-rollback.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.pdostatement-bindcolumn.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >PDO->rollBack()</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" >PDOStatement->bindColumn()</TD ></TR ></TABLE ></DIV ></BODY ></HTML >