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

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>realpath</H1
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><P
>    (PHP 4, PHP 5)</P
>realpath&nbsp;--&nbsp;返回规范化的绝对路径名</DIV
><DIV
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><H2
>说明</H2
>string <B
CLASS="methodname"
>realpath</B
> ( string path )<BR
></BR
><P
>&#13;   <B
CLASS="function"
>realpath()</B
> 扩展所有的符号连接并且处理输入的
   <CODE
CLASS="parameter"
>path</CODE
> 中的 '/./', '/../' 以及多余的 '/'
   并返回规范化后的绝对路径名。返回的路径中没有符号连接,'/./'
   或 '/../' 成分。
  </P
><P
>&#13;   <B
CLASS="function"
>realpath()</B
> 失败时返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>,比如说文件不存在的话。在 BSD
   系统上,如果仅仅是 <CODE
CLASS="parameter"
>path</CODE
> 不存在的话,PHP
   并不会像其它系统那样返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
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>例 1. <B
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>realpath()</B
> 例子</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$real_path </font><font color="#007700">= </font><font color="#0000BB">realpath</font><font color="#007700">(</font><font color="#DD0000">"../../index.php"</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>&#13;   参见 <A
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>basename()</B
></A
>,<A
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><B
CLASS="function"
>dirname()</B
></A
> 和
   <A
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><B
CLASS="function"
>pathinfo()</B
></A
>。
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