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>Phar::canCompress</H1
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><P
>    (no version information, might be only in CVS)</P
>Phar::canCompress&nbsp;--&nbsp;Returns whether phar extension supports compression using either zlib or bzip2</DIV
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><H2
>说明</H2
>bool <B
CLASS="methodname"
>Phar::canCompress</B
> ( [int type] )<BR
></BR
><P
>&#13;   This should be used to test whether compression is possible prior to
   loading a phar archive containing compressed files.
  </P
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><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>type</CODE
></DT
><DD
><P
>&#13;       Either <TT
CLASS="literal"
>Phar::GZ</TT
> or <TT
CLASS="literal"
>Phar::BZ2</TT
> can be
       used to test whether compression is possible with a specific compression
       algorithm (zlib or bzip2).
      </P
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>
  </P
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></A
><H2
>返回值</H2
><P
>&#13;   <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if compression/decompression is available, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> if not.
  </P
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>范例</H2
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>例 1. A <B
CLASS="function"
>Phar::canCompress()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#007700">if (</font><font color="#0000BB">Phar</font><font color="#007700">::</font><font color="#0000BB">canCompress</font><font color="#007700">()) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#0000BB">file_get_contents</font><font color="#007700">(</font><font color="#DD0000">'phar://compressedphar.phar/internal/file.txt'</font><font color="#007700">);<br />} else {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">'no compression available'</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
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></A
><H2
>参见</H2
><P
>&#13;   <P
></P
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><TR
><TD
><B
CLASS="function"
>PharFileInfo::isCompressed()</B
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