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

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>str_rot13</H1
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>    (PHP 4 &#62;= 4.2.0, PHP 5)</P
>str_rot13&nbsp;--&nbsp;Perform the rot13 transform on a string</DIV
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><H2
>Description</H2
>string <B
CLASS="methodname"
>str_rot13</B
> ( string str )<BR
></BR
><P
>&#13;     This function performs the ROT13 encoding on the
     <CODE
CLASS="parameter"
>str</CODE
> argument and returns the resulting
     string. The ROT13 encoding simply shifts every letter by 13
     places in the alphabet while leaving non-alpha characters
     untouched. Encoding and decoding are done by the same function,
     passing an encoded string as argument will return the original version.
    </P
><P
>&#13;     <TABLE
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>例 1. <B
CLASS="function"
>str_rot13()</B
> example</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br /></font><font color="#007700">echo </font><font color="#0000BB">str_rot13</font><font color="#007700">(</font><font color="#DD0000">'PHP 4.3.0'</font><font color="#007700">); </font><font color="#FF8000">// CUC 4.3.0<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
    </P
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><B
>注意: </B
>
      The behaviour of this function was buggy until PHP 4.3.0. Before
      this, the <CODE
CLASS="parameter"
>str</CODE
> was also modified, as if
      passed by reference.
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