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

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><H1
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>Phar::offsetUnset</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN179389"
></A
><P
>    (no version information, might be only in CVS)</P
>Phar::offsetUnset&nbsp;--&nbsp;remove a file from a phar</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN179392"
></A
><H2
>说明</H2
>bool <B
CLASS="methodname"
>Phar::offsetUnset</B
> ( string offset )<BR
></BR
><P
>&#13;   This is an implementation of the <SPAN
CLASS="interface"
>ArrayAccess</SPAN
> interface allowing
   direct manipulation of the contents of a Phar archive using
   array access brackets.  offsetUnset is used for deleting an
   existing file, and is called by the <A
HREF="function.unset.html"
><B
CLASS="function"
>unset()</B
></A
>
   language construct.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN179403"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>offset</CODE
></DT
><DD
><P
>&#13;       The filename (relative path) to modify in a Phar.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN179412"
></A
><H2
>返回值</H2
><P
>&#13;   如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>,失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN179417"
></A
><H2
>错误/异常</H2
><P
>&#13;   if <A
HREF="ref.phar.html#ini.phar.readonly"
>phar.readonly</A
> is <TT
CLASS="literal"
>1</TT
>,
   <B
CLASS="classname"
>BadMethodCallException</B
> is thrown, as modifying a Phar
   is only allowed when phar.readonly is set to <TT
CLASS="literal"
>0</TT
>. Throws
   <B
CLASS="classname"
>PharException</B
> if there are any problems flushing
   changes made to the Phar archive to disk.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN179425"
></A
><H2
>范例</H2
><P
>&#13;   <TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN179428"
></A
><P
><B
>例 1. A <B
CLASS="function"
>Phar::offsetUnset()</B
> example</B
></P
><TABLE
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><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$p </font><font color="#007700">= new </font><font color="#0000BB">Phar</font><font color="#007700">(</font><font color="#DD0000">'/path/to/my.phar'</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#DD0000">'my.phar'</font><font color="#007700">);<br /></font><font color="#0000BB">try </font><font color="#007700">{<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// deletes file.txt from my.phar by calling offsetUnset<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#007700">unset(</font><font color="#0000BB">$p</font><font color="#007700">[</font><font color="#DD0000">'file.txt'</font><font color="#007700">]);<br />} </font><font color="#0000BB">catch </font><font color="#007700">(</font><font color="#0000BB">Exception $e</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">'Could not delete file.txt: '</font><font color="#007700">, </font><font color="#0000BB">$e</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN179432"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
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><TBODY
><TR
><TD
><A
HREF="function.phar-offsetexists.html"
><B
CLASS="function"
>Phar::offsetExists()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.phar-offsetget.html"
><B
CLASS="function"
>Phar::offsetGet()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.phar-offsetset.html"
><B
CLASS="function"
>Phar::offsetSet()</B
></A
></TD
></TR
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><P
></P
>
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