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

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

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>get_headers</H1
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><P
>    (PHP 5)</P
>get_headers&nbsp;--&nbsp;取得服务器响应一个 HTTP 请求所发送的所有标头</DIV
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><H2
>说明</H2
>array <B
CLASS="methodname"
>get_headers</B
> ( string url [, int format] )<BR
></BR
><P
>&#13;   <B
CLASS="function"
>get_headers()</B
> 返回一个数组，包含有服务器响应一个
   HTTP 请求所发送的标头。如果失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
> 并发出一条
   <TT
CLASS="constant"
><B
>E_WARNING</B
></TT
> 级别的错误信息。
  </P
><P
>&#13;   如果将可选的 <CODE
CLASS="parameter"
>format</CODE
> 参数设为 1，则
   <B
CLASS="function"
>get_headers()</B
> 会解析相应的信息并设定数组的键名。
  </P
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><B
>注意: </B
>
    自 PHP 5.1.3 起本函数使用默认的流上下文，其可以用 <A
HREF="function.stream-context-get-default.html"
><B
CLASS="function"
>stream_context_get_default()</B
></A
>
    函数设定和修改。
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>例 1. <B
CLASS="function"
>get_headers()</B
> 例子</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$url </font><font color="#007700">= </font><font color="#DD0000">'http://www.example.com'</font><font color="#007700">;<br /><br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">get_headers</font><font color="#007700">(</font><font color="#0000BB">$url</font><font color="#007700">));<br /><br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">get_headers</font><font color="#007700">(</font><font color="#0000BB">$url</font><font color="#007700">, </font><font color="#0000BB">1</font><font color="#007700">));<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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><P
>上例的输出类似于：</P
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>Array
(
    [0] =&#62; HTTP/1.1 200 OK
    [1] =&#62; Date: Sat, 29 May 2004 12:28:13 GMT
    [2] =&#62; Server: Apache/1.3.27 (Unix)  (Red-Hat/Linux)
    [3] =&#62; Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
    [4] =&#62; ETag: "3f80f-1b6-3e1cb03b"
    [5] =&#62; Accept-Ranges: bytes
    [6] =&#62; Content-Length: 438
    [7] =&#62; Connection: close
    [8] =&#62; Content-Type: text/html
)

Array
(
    [0] =&#62; HTTP/1.1 200 OK
    [Date] =&#62; Sat, 29 May 2004 12:28:14 GMT
    [Server] =&#62; Apache/1.3.27 (Unix)  (Red-Hat/Linux)
    [Last-Modified] =&#62; Wed, 08 Jan 2003 23:11:55 GMT
    [ETag] =&#62; "3f80f-1b6-3e1cb03b"
    [Accept-Ranges] =&#62; bytes
    [Content-Length] =&#62; 438
    [Connection] =&#62; close
    [Content-Type] =&#62; text/html
)</PRE
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