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>get_class_vars</H1
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> (PHP 4, PHP 5)</P
>get_class_vars -- 返回由类的默认属性组成的数组</DIV
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><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。
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><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。
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> <TABLE
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><B
>例 1. <B
CLASS="function"
>get_class_vars()</B
> 示例</B
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><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
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>上例将输出：</P
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>// 在 PHP 4.2.0 之前
var2 : xyz
var3 : 100
// 从 PHP 4.2.0 开始
var1 :
var2 : xyz
var3 : 100</PRE
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>
</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
>
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