documentation and examples

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@159992 c90b9560-bf6c-de11-be94-00142212c4b1

reference/url/functions/get-headers.xml

@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='iso-8859-1'?>
-<!-- $Revision: 1.1 $ -->
+<!-- $Revision: 1.2 $ -->
   <refentry id="function.get-headers">
    <refnamediv>
     <refname>get_headers</refname>
@@ -12,10 +12,65 @@
     <methodsynopsis>
      <type>array</type><methodname>get_headers</methodname>
      <methodparam><type>string</type><parameter>url</parameter></methodparam>
+     <methodparam choice="opt"><type>bool</type><parameter>format</parameter></methodparam>
     </methodsynopsis>
+    <para>
+     <function>get_headers</function> returns an array with the headers sent
+     by the server in response to a HTTP request.
+    </para>
+    <para>
+     If the optional <parameter>format</parameter> parameter is true,
+     <function>get_headers</function> parses the response and sets the array's
+     keys.
+    </para>
+    <para>
+     <example>
+      <title><function>get_headers</function> example</title>
+      <programlisting role="php">
+<![CDATA[
+<?php
+$url = 'http://www.example.com';
 
-     &warn.undocumented.func;
+print_r(get_headers($url));
 
+print_r(get_headers($url, true));
+?>
+]]>
+      </programlisting>
+      <para>
+       The above example will output something like:
+      </para>
+      <screen>
+<![CDATA[
+Array
+(
+    [0] => HTTP/1.1 200 OK
+    [1] => Date: Sat, 29 May 2004 12:28:13 GMT
+    [2] => Server: Apache/1.3.27 (Unix)  (Red-Hat/Linux)
+    [3] => Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
+    [4] => ETag: "3f80f-1b6-3e1cb03b"
+    [5] => Accept-Ranges: bytes
+    [6] => Content-Length: 438
+    [7] => Connection: close
+    [8] => Content-Type: text/html
+)
+
+Array
+(
+    [0] => HTTP/1.1 200 OK
+    [Date] => Sat, 29 May 2004 12:28:14 GMT
+    [Server] => Apache/1.3.27 (Unix)  (Red-Hat/Linux)
+    [Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT
+    [ETag] => "3f80f-1b6-3e1cb03b"
+    [Accept-Ranges] => bytes
+    [Content-Length] => 438
+    [Connection] => close
+    [Content-Type] => text/html
+)
+]]>
+      </screen>
+     </example>
+    </para>
    </refsect1>
   </refentry>