<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >db2_field_num</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="IBM DB2, Cloudscape and Apache Derby Functions" HREF="ref.ibm-db2.html"><LINK REL="PREVIOUS" TITLE="db2_field_name" HREF="function.db2-field-name.html"><LINK REL="NEXT" TITLE="db2_field_precision" HREF="function.db2-field-precision.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.db2-field-name.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.db2-field-precision.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.db2-field-num" ></A >db2_field_num</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN81179" ></A ><P > (PECL)</P >db2_field_num -- Returns the position of the named column in a result set </DIV ><DIV CLASS="refsect1" ><A NAME="AEN81182" ></A ><H2 >说明</H2 >int <B CLASS="methodname" >db2_field_num</B > ( resource stmt, mixed column )<BR ></BR ><P > Returns the position of the named column in a result set. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN81194" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >stmt</CODE ></DT ><DD ><P > Specifies a statement resource containing a result set. </P ></DD ><DT ><CODE CLASS="parameter" >column</CODE ></DT ><DD ><P > Specifies the column in the result set. This can either be an integer representing the 0-indexed position of the column, or a string containing the name of the column. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN81208" ></A ><H2 >返回值</H2 ><P > Returns an integer containing the 0-indexed position of the named column in the result set. If the specified column does not exist in the result set, <B CLASS="function" >db2_field_num()</B > returns <TT CLASS="constant" ><B >FALSE</B ></TT >. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN81213" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.db2-field-display-size.html" ><B CLASS="function" >db2_field_display_size()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.db2-field-name.html" ><B CLASS="function" >db2_field_name()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.db2-field-precision.html" ><B CLASS="function" >db2_field_precision()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.db2-field-scale.html" ><B CLASS="function" >db2_field_scale()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.db2-field-type.html" ><B CLASS="function" >db2_field_type()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.db2-field-width.html" ><B CLASS="function" >db2_field_width()</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.db2-field-name.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.db2-field-precision.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >db2_field_name</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.ibm-db2.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >db2_field_precision</TD ></TR ></TABLE ></DIV ></BODY ></HTML >