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

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

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>XXXVIII. Fileinfo Functions</H1
><DIV
CLASS="PARTINTRO"
><A
NAME="AEN51209"
></A
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="fileinfo.intro"
>简介</A
></H1
><P
>&#13;    The functions in this module try to guess the content type
     and encoding of a file by looking for certain 
     <SPAN
CLASS="emphasis"
><I
CLASS="emphasis"
>magic</I
></SPAN
> byte sequences at specific
     positions within the file. While this is not a bullet proof
     approach the heuristics used do a very good job.
   </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="fileinfo.requirements"
>需求</A
></H1
><P
>&#13;    <TT
CLASS="literal"
>magic_open</TT
> library is needed to build this extension.
   </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="fileinfo.installation"
>安装</A
></H1
><P
>&#13;  安装此 PECL 扩展库的信息可在手册中标题为 <A
HREF="install.pecl.html"
>PECL 扩展库安装</A
>的一章中找到。 更多信息如新版本，下载，源文件，维护者信息以及更新日志等可以在这里找到：
  <A
HREF="http://pecl.php.netfileinfo"
TARGET="_top"
>http://pecl.php.netfileinfo</A
>
 </P
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><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="fileinfo.configuration"
>运行时配置</A
></H1
><P
>本扩展模块在 <TT
CLASS="filename"
>php.ini</TT
> 中未定义任何配置选项。</P
></DIV
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><H1
CLASS="section"
><A
NAME="fileinfo.resources"
>资源类型</A
></H1
><P
>&#13;    There is one resource used in Fileinfo extension: a magic database
    descriptor returned by <A
HREF="function.finfo-open.html"
><B
CLASS="function"
>finfo_open()</B
></A
>.
   </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="fileinfo.constants"
>预定义常量</A
></H1
><P
>以下常量由本扩展模块定义，因此只有在本扩展模块被编译到
PHP 中，或者在运行时被动态加载后才有效。</P
><P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><TT
CLASS="constant"
><B
>FILEINFO_NONE</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     No special handling.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_SYMLINK</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     Follow symlinks.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_MIME</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     Return a mime string, instead of a textual description.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_COMPRESS</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     Decompress compressed files.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_DEVICES</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     Look at the contents of blocks or character special devices.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_CONTINUE</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     Return all matches, not just the first.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_PRESERVE_ATIME</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     If possible preserve the original access time.
    </P
></DD
><DT
><TT
CLASS="constant"
><B
>FILEINFO_RAW</B
></TT
>
     (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;     Don't translate unprintable characters to a <TT
CLASS="literal"
>\ooo</TT
> octal
     representation.
    </P
></DD
></DL
></DIV
></DIV
></DIV
><DIV
CLASS="TOC"
><DL
><DT
><B
>目录</B
></DT
><DT
><A
HREF="function.finfo-buffer.html"
>finfo_buffer</A
>&nbsp;--&nbsp;Return information about a string buffer</DT
><DT
><A
HREF="function.finfo-close.html"
>finfo_close</A
>&nbsp;--&nbsp;Close fileinfo resource</DT
><DT
><A
HREF="function.finfo-file.html"
>finfo_file</A
>&nbsp;--&nbsp;Return information about a file</DT
><DT
><A
HREF="function.finfo-open.html"
>finfo_open</A
>&nbsp;--&nbsp;Create a new fileinfo resource</DT
><DT
><A
HREF="function.finfo-set-flags.html"
>finfo_set_flags</A
>&nbsp;--&nbsp;Set libmagic configuration options</DT
></DL
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