add example on how to send POST data using stream context opts. many thanks to Sara for the code

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@218006 c90b9560-bf6c-de11-be94-00142212c4b1

appendices/wrappers.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.61 $ -->
+<!-- $Revision: 1.62 $ -->
 <appendix id="wrappers">
  <title>List of Supported Protocols/Wrappers</title>
  <para>
@@ -202,6 +202,35 @@ foreach($meta_data['wrapper_data'] as $response) {
 ]]>
    </programlisting>
   </informalexample>
+  <example>
+   <title>Fetch a page and send POST data</title>
+   <programlisting role="php">
+<![CDATA[
+<?php
+
+$postdata = http_build_query(
+    array(
+        'var1' => 'some content',
+        'var2' => 'doh'
+    )
+);
+
+$opts = array('http' =>
+    array(
+        'method'  => 'POST',
+        'header'  => 'Content-type: application/x-www-form-urlencoded',
+        'content' => $postdata
+    )
+);
+
+$context  = stream_context_create($opts);
+
+$result = file_get_contents('http://example.com/submit.php', false, $context);
+
+?>
+]]>
+   </programlisting>
+  </example>
   <simpara>
    The stream allows access to the <emphasis>body</emphasis> of
    the resource; the headers are stored in the