Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>var_export</H1
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><P
>    (PHP 4 &#62;= 4.2.0, PHP 5)</P
>var_export&nbsp;--&nbsp;输出或返回一个变量的字符串表示</DIV
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>描述</H2
>mixed <B
CLASS="methodname"
>var_export</B
> ( mixed expression [, bool return] )<BR
></BR
><P
>&#13;      此函数返回关于传递给该函数的变量的结构信息，它和
      <A
HREF="function.var-dump.html"
><B
CLASS="function"
>var_dump()</B
></A
> 类似，不同的是其返回的表示是合法的
      PHP 代码。
    </P
><P
>&#13;     您可以通过将函数的第二个参数设置为
     <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，从而返回变量的表示。
    </P
><P
>&#13;     比较 <B
CLASS="function"
>var_export()</B
> 和
     <A
HREF="function.var-dump.html"
><B
CLASS="function"
>var_dump()</B
></A
>.
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><code><font color="#000000">
&lt;pre&gt;<br /><font color="#0000BB">&lt;?php<br />$a </font><font color="#007700">= array (</font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#0000BB">2</font><font color="#007700">, array (</font><font color="#DD0000">"a"</font><font color="#007700">, </font><font color="#DD0000">"b"</font><font color="#007700">, </font><font color="#DD0000">"c"</font><font color="#007700">));<br /></font><font color="#0000BB">var_export </font><font color="#007700">(</font><font color="#0000BB">$a</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* 输出：<br />array (<br />&nbsp;&nbsp;0 =&gt; 1,<br />&nbsp;&nbsp;1 =&gt; 2,<br />&nbsp;&nbsp;2 =&gt; <br />&nbsp;&nbsp;array (<br />&nbsp;&nbsp;&nbsp;&nbsp;0 =&gt; 'a',<br />&nbsp;&nbsp;&nbsp;&nbsp;1 =&gt; 'b',<br />&nbsp;&nbsp;&nbsp;&nbsp;2 =&gt; 'c',<br />&nbsp;&nbsp;),<br />)<br />*/<br /><br /></font><font color="#0000BB">$b </font><font color="#007700">= </font><font color="#0000BB">3.1</font><font color="#007700">;<br /></font><font color="#0000BB">$v </font><font color="#007700">= </font><font color="#0000BB">var_export</font><font color="#007700">(</font><font color="#0000BB">$b</font><font color="#007700">, </font><font color="#0000BB">TRUE</font><font color="#007700">);<br />echo </font><font color="#0000BB">$v</font><font color="#007700">;<br /><br /></font><font color="#FF8000">/* 输出：<br />3.1<br />*/<br /></font><font color="#0000BB">?&gt;<br /></font>&lt;/pre&gt;</font>
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