<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >get_class_vars</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="Classes/Objects 类/对象函数" HREF="ref.classobj.html"><LINK REL="PREVIOUS" TITLE="get_class_methods" HREF="function.get-class-methods.html"><LINK REL="NEXT" TITLE="get_class" HREF="function.get-class.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.get-class-methods.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.get-class.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.get-class-vars" ></A >get_class_vars</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN16875" ></A ><P > (PHP 4, PHP 5)</P >get_class_vars -- 返回由类的默认属性组成的数组</DIV ><DIV CLASS="refsect1" ><A NAME="AEN16878" ></A ><H2 >说明</H2 >array <B CLASS="methodname" >get_class_vars</B > ( string class_name )<BR ></BR ><P > 返回由类的默认公有属性组成的关联数组,此数组的元素以 <CODE CLASS="parameter" >varname => value</CODE > 的形式存在。 </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >注意: </B > 在 PHP 4.2.0 之前,<B CLASS="function" >get_class_vars()</B > 不会包含未初始化的类变量。 </P ></BLOCKQUOTE ></DIV ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN16892" ></A ><P ><B >例 1. <B CLASS="function" >get_class_vars()</B > 示例</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br /></font><font color="#007700">class </font><font color="#0000BB">myclass </font><font color="#007700">{<br /><br /> var </font><font color="#0000BB">$var1</font><font color="#007700">; </font><font color="#FF8000">// 此变量没有默认值……<br /> </font><font color="#007700">var </font><font color="#0000BB">$var2 </font><font color="#007700">= </font><font color="#DD0000">"xyz"</font><font color="#007700">;<br /> var </font><font color="#0000BB">$var3 </font><font color="#007700">= </font><font color="#0000BB">100</font><font color="#007700">;<br /> </font><font color="#0000BB">private $var4</font><font color="#007700">; </font><font color="#FF8000">// PHP 5<br /><br /> // constructor<br /> </font><font color="#007700">function </font><font color="#0000BB">myclass</font><font color="#007700">() {<br /> </font><font color="#FF8000">// change some properties<br /> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">var1 </font><font color="#007700">= </font><font color="#DD0000">"foo"</font><font color="#007700">;<br /> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">var2 </font><font color="#007700">= </font><font color="#DD0000">"bar"</font><font color="#007700">;<br /> return </font><font color="#0000BB">true</font><font color="#007700">;<br /> }<br /><br />}<br /><br /></font><font color="#0000BB">$my_class </font><font color="#007700">= new </font><font color="#0000BB">myclass</font><font color="#007700">();<br /><br /></font><font color="#0000BB">$class_vars </font><font color="#007700">= </font><font color="#0000BB">get_class_vars</font><font color="#007700">(</font><font color="#0000BB">get_class</font><font color="#007700">(</font><font color="#0000BB">$my_class</font><font color="#007700">));<br /><br />foreach (</font><font color="#0000BB">$class_vars </font><font color="#007700">as </font><font color="#0000BB">$name </font><font color="#007700">=> </font><font color="#0000BB">$value</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">"$name : $value</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br />}<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" >// 在 PHP 4.2.0 之前 var2 : xyz var3 : 100 // 从 PHP 4.2.0 开始 var1 : var2 : xyz var3 : 100</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > 参见 <A HREF="function.get-class-methods.html" ><B CLASS="function" >get_class_methods()</B ></A >、 <A HREF="function.get-object-vars.html" ><B CLASS="function" >get_object_vars()</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.get-class-methods.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.get-class.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >get_class_methods</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.classobj.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >get_class</TD ></TR ></TABLE ></DIV ></BODY ></HTML >