<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >variant_idiv</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="COM 和 .Net(Windows)函数" HREF="ref.com.html"><LINK REL="PREVIOUS" TITLE="variant_get_type" HREF="function.variant-get-type.html"><LINK REL="NEXT" TITLE="variant_imp" HREF="function.variant-imp.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.variant-get-type.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.variant-imp.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.variant-idiv" ></A >variant_idiv</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN22836" ></A ><P > (PHP 5)</P >variant_idiv -- Converts variants to integers and then returns the result from dividing them </DIV ><DIV CLASS="refsect1" ><A NAME="AEN22839" ></A ><H2 >Description</H2 >mixed <B CLASS="methodname" >variant_idiv</B > ( mixed left, mixed right )<BR ></BR ><P > Converts <CODE CLASS="parameter" >left</CODE > and <CODE CLASS="parameter" >right</CODE > to integer values, and then performs integer division according the following rules: <DIV CLASS="table" ><A NAME="AEN22853" ></A ><P ><B >表 1. Variant Integer Division Rules</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><THEAD ><TR ><TH >If</TH ><TH >Then</TH ></TR ></THEAD ><TBODY ><TR ><TD >Both expressions are of the string, date, character, boolean type</TD ><TD >Division and integer is returned</TD ></TR ><TR ><TD >One expression is a string type and the other a character</TD ><TD >Division</TD ></TR ><TR ><TD >One expression is numeric and the other is a string</TD ><TD >Division</TD ></TR ><TR ><TD >Both expressions are numeric</TD ><TD >Division</TD ></TR ><TR ><TD >Either expression is NULL</TD ><TD >NULL is returned</TD ></TR ><TR ><TD >Both expressions are empty</TD ><TD >A com_exception with code <TT CLASS="constant" ><B >DISP_E_DIVBYZERO</B ></TT > is thrown</TD ></TR ></TBODY ></TABLE ></DIV > </P ><P > See also <A HREF="function.variant-div.html" ><B CLASS="function" >variant_div()</B ></A >. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >注意: </B > 对于所有的变量算法函数,此函数的参数可以要么是 PHP 自身的类型(整型,字符串,浮点型,布尔型或者 <TT CLASS="constant" ><B >NULL</B ></TT >),要么是一个 COM,VARIANT 或 DOTNET 类的实例。PHP 自身类型将被转换为变量,使用与 <A HREF="class.variant.html" >VARIANT</A > 类的构造函数中相同的规则。COM 和 DOTNET 对象将具有其默认属性的值,取得并作为变量值使用。 </P ><P > 变量算法函数是 COM 库中与其名称接近的函数的封装。此类函数的更多信息请参考 MSDN 库。PHP 函数命名有少许不同,例如 PHP 中的 variant_add() 对应于 MSDN 文档中的 VarAdd()。 </P ></BLOCKQUOTE ></DIV ></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.variant-get-type.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.variant-imp.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >variant_get_type</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.com.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >variant_imp</TD ></TR ></TABLE ></DIV ></BODY ></HTML >