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

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>stream_get_contents</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN223170"
></A
><P
>    (PHP 5)</P
>stream_get_contents&nbsp;--&nbsp;Reads remainder of a stream into a string</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN223173"
></A
><H2
>Description</H2
>string <B
CLASS="methodname"
>stream_get_contents</B
> ( resource handle [, int maxlength [, int offset]] )<BR
></BR
><P
> 
     Identical to <A
HREF="function.file-get-contents.html"
><B
CLASS="function"
>file_get_contents()</B
></A
>, except that
     <B
CLASS="function"
>stream_get_contents()</B
> operates on an already open
     stream resource and returns the remaining contents in a string, up to
     <CODE
CLASS="parameter"
>maxlength</CODE
> bytes and starting at the specified
     <CODE
CLASS="parameter"
>offset</CODE
>.
    </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN223192"
></A
><H2
>参数</H2
><P
>&#13;    <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>handle</CODE
> (<A
HREF="language.types.resource.html"
><B
CLASS="type"
>resource</B
></A
>)</DT
><DD
><P
>&#13;        A stream resource (e.g. returned from <A
HREF="function.fopen.html"
><B
CLASS="function"
>fopen()</B
></A
>)
       </P
></DD
><DT
><CODE
CLASS="parameter"
>maxlength</CODE
> (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;        The maximum bytes to read. Defaults to -1 (read all the remaining
        buffer).
       </P
></DD
><DT
><CODE
CLASS="parameter"
>offset</CODE
> (<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
>)</DT
><DD
><P
>&#13;        Seek to the specified offset before reading. Added in PHP 5.1.0.
       </P
></DD
></DL
></DIV
>
   </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN223215"
></A
><H2
>返回值</H2
><P
>&#13;    Returns a string, or <TT
CLASS="constant"
><B
>FALSE</B
></TT
> on failure.
   </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN223219"
></A
><H2
>范例</H2
><P
>&#13;   <TABLE
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN223222"
></A
><P
><B
>例 1. <B
CLASS="function"
>stream_get_contents()</B
> example</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br /></font><font color="#007700">if (</font><font color="#0000BB">$stream </font><font color="#007700">= </font><font color="#0000BB">fopen</font><font color="#007700">(</font><font color="#DD0000">'http://www.example.com'</font><font color="#007700">, </font><font color="#DD0000">'r'</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// print all the page starting at the offset 10<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#007700">echo </font><font color="#0000BB">stream_get_contents</font><font color="#007700">(</font><font color="#0000BB">$stream</font><font color="#007700">, -</font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#0000BB">10</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">fclose</font><font color="#007700">(</font><font color="#0000BB">$stream</font><font color="#007700">);<br />}<br /><br /><br />if (</font><font color="#0000BB">$stream </font><font color="#007700">= </font><font color="#0000BB">fopen</font><font color="#007700">(</font><font color="#DD0000">'http://www.example.net'</font><font color="#007700">, </font><font color="#DD0000">'r'</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// print the first 5 bytes<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#007700">echo </font><font color="#0000BB">stream_get_contents</font><font color="#007700">(</font><font color="#0000BB">$stream</font><font color="#007700">, </font><font color="#0000BB">5</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">fclose</font><font color="#007700">(</font><font color="#0000BB">$stream</font><font color="#007700">);<br />}<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
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>
     </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN223226"
></A
><H2
>参见</H2
><P
>&#13;     <P
></P
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BORDER="0"
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><TR
><TD
><A
HREF="function.fgets.html"
><B
CLASS="function"
>fgets()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.fread.html"
><B
CLASS="function"
>fread()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.fpassthru.html"
><B
CLASS="function"
>fpassthru()</B
></A
></TD
></TR
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><P
></P
>
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>本函数可安全用于二进制对象。</P
></BLOCKQUOTE
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