diff --git a/appendices/reserved.xml b/appendices/reserved.xml
index 3f1a9654a2..88b446b430 100755
--- a/appendices/reserved.xml
+++ b/appendices/reserved.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.64 $ -->
+<!-- $Revision: 1.65 $ -->
 
  <appendix id="reserved">
   <title>List of Reserved Words</title>
@@ -1107,9 +1107,27 @@
      option is turned on (it defaults to off).
     </simpara>
    </sect2>
+
+   <sect2 id="reserved.variables.httprawpostdata">
+    <title>Raw POST data: <varname>$HTTP_RAW_POST_DATA</varname></title>
+    <para>
+     <varname>$HTTP_RAW_POST_DATA</varname> contains the raw POST data.
+     See <link linkend="ini.always-populate-raw-post-data">always_populate_raw_post_data</link>
+    </para>
+   </sect2>
+
+   <sect2 id="reserved.variables.httpresponseheader">
+    <title>HTTP response headers: <varname>$http_response_header</varname></title>
+    <para>
+     The <varname>$http_response_header</varname> array is similiar to the
+     <function>get_headers</function> function. When using the
+     <link linkend="wrappers.http">HTTP wrapper</link>
+     <varname>$http_response_header</varname> will be populated with the HTTP
+     response headers.
+    </para>
+   </sect2>
+
   </sect1>
-
-
   <sect1 id="reserved.classes">
    <title>Predefined Classes</title>
    <para>