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

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

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>IX. Bzip2 压缩函数</H1
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><H1
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><A
NAME="bzip2.intro"
>简介</A
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><P
>&#13;    Bzip2 函数用来透明的读写 bzip2（.bz2）压缩文件。
   </P
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><A
NAME="bzip2.requirements"
>需求</A
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>&#13;    本模块使用 Julian Seward 写的 <A
HREF="http://www.bzip.org/"
TARGET="_top"
>bzip2</A
>
    库。此模块需要 bzip2/libbzip2 版本 &#62;= 1.0.x。
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>安装</A
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>&#13;  PHP 的 bzip2 支持默认未打开。编译 PHP 时需要
  <CODE
CLASS="option"
>--with-bz2[=DIR]</CODE
>
  配置选项来激活 bzip2 支持。
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>运行时配置</A
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>本扩展模块在 <TT
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>php.ini</TT
> 中未定义任何配置选项。</P
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>资源类型</A
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>&#13;    本扩展定义了一种资源类型：一个文件指针，指向正在被操作的 bz2 文件。
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>预定义常量</A
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>本扩展模块未定义任何常量。</P
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>范例</A
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>&#13;    该例子打开一临时文件，并写入一测试字符串，然后打印文件内容。
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>例 1. Bzip2 例子</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br />$filename </font><font color="#007700">= </font><font color="#DD0000">"/tmp/testfile.bz2"</font><font color="#007700">;<br /></font><font color="#0000BB">$str </font><font color="#007700">= </font><font color="#DD0000">"This is a test string.\n"</font><font color="#007700">;<br /><br /></font><font color="#FF8000">// 以写入方式打开文件<br /></font><font color="#0000BB">$bz </font><font color="#007700">= </font><font color="#0000BB">bzopen</font><font color="#007700">(</font><font color="#0000BB">$filename</font><font color="#007700">, </font><font color="#DD0000">"w"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 写入字符串到文件<br /></font><font color="#0000BB">bzwrite</font><font color="#007700">(</font><font color="#0000BB">$bz</font><font color="#007700">, </font><font color="#0000BB">$str</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 关闭文件<br /></font><font color="#0000BB">bzclose</font><font color="#007700">(</font><font color="#0000BB">$bz</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 以读取方式打开文件<br /></font><font color="#0000BB">$bz </font><font color="#007700">= </font><font color="#0000BB">bzopen</font><font color="#007700">(</font><font color="#0000BB">$filename</font><font color="#007700">, </font><font color="#DD0000">"r"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 读取 10 个字符<br /></font><font color="#007700">echo </font><font color="#0000BB">bzread</font><font color="#007700">(</font><font color="#0000BB">$bz</font><font color="#007700">, </font><font color="#0000BB">10</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 输出直到文件结尾（或后续的 1024 字节）并关闭它。<br /></font><font color="#007700">echo </font><font color="#0000BB">bzread</font><font color="#007700">(</font><font color="#0000BB">$bz</font><font color="#007700">);<br /><br /></font><font color="#0000BB">bzclose</font><font color="#007700">(</font><font color="#0000BB">$bz</font><font color="#007700">);<br /><br /></font><font color="#0000BB">?&gt;</font>
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><B
>目录</B
></DT
><DT
><A
HREF="function.bzclose.html"
>bzclose</A
>&nbsp;--&nbsp;Close a bzip2 file</DT
><DT
><A
HREF="function.bzcompress.html"
>bzcompress</A
>&nbsp;--&nbsp;Compress a string into bzip2 encoded data</DT
><DT
><A
HREF="function.bzdecompress.html"
>bzdecompress</A
>&nbsp;--&nbsp;Decompresses bzip2 encoded data</DT
><DT
><A
HREF="function.bzerrno.html"
>bzerrno</A
>&nbsp;--&nbsp;Returns a bzip2 error number</DT
><DT
><A
HREF="function.bzerror.html"
>bzerror</A
>&nbsp;--&nbsp;
   Returns the bzip2 error number and error string in an array
  </DT
><DT
><A
HREF="function.bzerrstr.html"
>bzerrstr</A
>&nbsp;--&nbsp;Returns a bzip2 error string</DT
><DT
><A
HREF="function.bzflush.html"
>bzflush</A
>&nbsp;--&nbsp;Force a write of all buffered data</DT
><DT
><A
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>bzopen</A
>&nbsp;--&nbsp;Opens a bzip2 compressed file</DT
><DT
><A
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>bzread</A
>&nbsp;--&nbsp;Binary safe bzip2 file read</DT
><DT
><A
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>bzwrite</A
>&nbsp;--&nbsp;Binary safe bzip2 file write</DT
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