<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>get_object_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_declared_interfaces"
HREF="function.get-declared-interfaces.html"><LINK
REL="NEXT"
TITLE="get_parent_class"
HREF="function.get-parent-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-declared-interfaces.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-parent-class.html"
ACCESSKEY="N"
>下一页</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="function.get-object-vars"
></A
>get_object_vars</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN16986"
></A
><P
> (PHP 4, PHP 5)</P
>get_object_vars -- 返回由对象属性组成的关联数组</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN16989"
></A
><H2
>说明</H2
>array <B
CLASS="methodname"
>get_object_vars</B
> ( object obj )<BR
></BR
><P
> 返回由 <CODE
CLASS="parameter"
>obj</CODE
>
指定的对象中定义的属性组成的关联数组。
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
在 PHP 4.2.0 之前的版本中，如果在 <CODE
CLASS="parameter"
>obj</CODE
>
对象实例中声明的变量没有被赋值，则它们将不会在返回的数组中。而在
PHP 4.2.0 之后，这些变量作为键名将被赋予 <TT
CLASS="constant"
><B
>NULL</B
></TT
> 值。
</P
></BLOCKQUOTE
></DIV
><P
> <TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN17004"
></A
><P
><B
>例 1. 使用 <B
CLASS="function"
>get_object_vars()</B
></B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB"><?php<br /></font><font color="#007700">class </font><font color="#0000BB">Point2D </font><font color="#007700">{<br /> var </font><font color="#0000BB">$x</font><font color="#007700">, </font><font color="#0000BB">$y</font><font color="#007700">;<br /> var </font><font color="#0000BB">$label</font><font color="#007700">;<br /><br /> function </font><font color="#0000BB">Point2D</font><font color="#007700">(</font><font color="#0000BB">$x</font><font color="#007700">, </font><font color="#0000BB">$y</font><font color="#007700">)<br /> {<br /> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">x </font><font color="#007700">= </font><font color="#0000BB">$x</font><font color="#007700">;<br /> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">y </font><font color="#007700">= </font><font color="#0000BB">$y</font><font color="#007700">;<br /> }<br /><br /> function </font><font color="#0000BB">setLabel</font><font color="#007700">(</font><font color="#0000BB">$label</font><font color="#007700">)<br /> {<br /> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">label </font><font color="#007700">= </font><font color="#0000BB">$label</font><font color="#007700">;<br /> }<br /><br /> function </font><font color="#0000BB">getPoint</font><font color="#007700">()<br /> {<br /> return array(</font><font color="#DD0000">"x" </font><font color="#007700">=> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">x</font><font color="#007700">,<br /> </font><font color="#DD0000">"y" </font><font color="#007700">=> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">y</font><font color="#007700">,<br /> </font><font color="#DD0000">"label" </font><font color="#007700">=> </font><font color="#0000BB">$this</font><font color="#007700">-></font><font color="#0000BB">label</font><font color="#007700">);<br /> }<br />}<br /><br /></font><font color="#FF8000">// "$label" is declared but not defined<br /></font><font color="#0000BB">$p1 </font><font color="#007700">= new </font><font color="#0000BB">Point2D</font><font color="#007700">(</font><font color="#0000BB">1.233</font><font color="#007700">, </font><font color="#0000BB">3.445</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">get_object_vars</font><font color="#007700">(</font><font color="#0000BB">$p1</font><font color="#007700">));<br /><br /></font><font color="#0000BB">$p1</font><font color="#007700">-></font><font color="#0000BB">setLabel</font><font color="#007700">(</font><font color="#DD0000">"point #1"</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">get_object_vars</font><font color="#007700">(</font><font color="#0000BB">$p1</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"
>Array
(
[x] => 1.233
[y] => 3.445
[label] =>
)
Array
(
[x] => 1.233
[y] => 3.445
[label] => point #1
)</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
> 和
<A
HREF="function.get-class-vars.html"
><B
CLASS="function"
>get_class_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-declared-interfaces.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-parent-class.html"
ACCESSKEY="N"
>下一页</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>get_declared_interfaces</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_parent_class</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
